45724279877 has 4 divisors (see below), whose sum is σ = 45767376396. Its totient is φ = 45681183360.

The previous prime is 45724279859. The next prime is 45724279883. The reversal of 45724279877 is 77897242754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25809707716 + 19914572161 = 160654^2 + 141119^2 .

It is a cyclic number.

It is not a de Polignac number, because 45724279877 - 2¹² = 45724275781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45724279847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21546668 + ... + 21548789.

It is an arithmetic number, because the mean of its divisors is an integer number (11441844099).

Almost surely, 2^45724279877 is an apocalyptic number.

It is an amenable number.

45724279877 is a deficient number, since it is larger than the sum of its proper divisors (43096519).

45724279877 is a wasteful number, since it uses less digits than its factorization.

45724279877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43096518.

The product of its digits is 55319040, while the sum is 62.

The spelling of 45724279877 in words is "forty-five billion, seven hundred twenty-four million, two hundred seventy-nine thousand, eight hundred seventy-seven".