74257678811157 has 16 divisors (see below), whose sum is σ = 99044848839168. Its totient is φ = 49487815286000.

The previous prime is 74257678811123. The next prime is 74257678811189. The reversal of 74257678811157 is 75111887675247.

It is a cyclic number.

It is not a de Polignac number, because 74257678811157 - 2²⁶ = 74257611702293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74257678811091 and 74257678811100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74257678810157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252875338 + ... + 253168820.

It is an arithmetic number, because the mean of its divisors is an integer number (6190303052448).

Almost surely, 2^{74257678811157} is an apocalyptic number.

It is an amenable number.

74257678811157 is a deficient number, since it is larger than the sum of its proper divisors (24787170028011).

74257678811157 is a wasteful number, since it uses less digits than its factorization.

74257678811157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322680.

The product of its digits is 184396800, while the sum is 69.

The spelling of 74257678811157 in words is "seventy-four trillion, two hundred fifty-seven billion, six hundred seventy-eight million, eight hundred eleven thousand, one hundred fifty-seven".