613635402452 has 12 divisors (see below), whose sum is σ = 1073876019636. Its totient is φ = 306813682560.

The previous prime is 613635402409. The next prime is 613635402463. The reversal of 613635402452 is 254204536316.

It can be written as a sum of positive squares in 2 ways, for example, as 241735455556 + 371899946896 = 491666^2 + 609836^2 .

It is a super-2 number, since 2×613635402452² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646949 + ... + 1282892.

It is an arithmetic number, because the mean of its divisors is an integer number (89489668303).

Almost surely, 2^613635402452 is an apocalyptic number.

It is an amenable number.

613635402452 is a deficient number, since it is larger than the sum of its proper divisors (460240617184).

613635402452 is a wasteful number, since it uses less digits than its factorization.

613635402452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009338 (or 2009336 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 613635402452 its reverse (254204536316), we get a palindrome (867839938768).

The spelling of 613635402452 in words is "six hundred thirteen billion, six hundred thirty-five million, four hundred two thousand, four hundred fifty-two".