74157564361 has 4 divisors (see below), whose sum is σ = 74509022224. Its totient is φ = 73806106500.

The previous prime is 74157564353. The next prime is 74157564419. The reversal of 74157564361 is 16346575147.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74157564361 - 2³ = 74157564353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74157564311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175728615 + ... + 175729036.

It is an arithmetic number, because the mean of its divisors is an integer number (18627255556).

Almost surely, 2^74157564361 is an apocalyptic number.

It is an amenable number.

74157564361 is a deficient number, since it is larger than the sum of its proper divisors (351457863).

74157564361 is a wasteful number, since it uses less digits than its factorization.

74157564361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351457862.

The product of its digits is 2116800, while the sum is 49.

The spelling of 74157564361 in words is "seventy-four billion, one hundred fifty-seven million, five hundred sixty-four thousand, three hundred sixty-one".