420269631885 has 24 divisors (see below), whose sum is σ = 738446372664. Its totient is φ = 221073338880.

The previous prime is 420269631877. The next prime is 420269631911. The reversal of 420269631885 is 588136962024.

420269631885 is a `hidden beast` number, since 420 + 26 + 96 + 31 + 8 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 138493389609 + 281776242276 = 372147^2 + 530826^2 .

It is not a de Polignac number, because 420269631885 - 2³ = 420269631877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63964696 + ... + 63971265.

It is an arithmetic number, because the mean of its divisors is an integer number (30768598861).

Almost surely, 2^420269631885 is an apocalyptic number.

420269631885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420269631885 is a deficient number, since it is larger than the sum of its proper divisors (318176740779).

420269631885 is a wasteful number, since it uses less digits than its factorization.

420269631885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127936045 (or 127936042 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 420269631885 in words is "four hundred twenty billion, two hundred sixty-nine million, six hundred thirty-one thousand, eight hundred eighty-five".