34474478157 has 24 divisors (see below), whose sum is σ = 57039931520. Its totient is φ = 19654812000.

The previous prime is 34474478141. The next prime is 34474478179. The reversal of 34474478157 is 75187447443.

It is a happy number.

34474478157 is a `hidden beast` number, since 3 + 4 + 47 + 447 + 8 + 157 = 666.

It is not a de Polignac number, because 34474478157 - 2⁴ = 34474478141 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 (34474478117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595594 + ... + 650907.

Almost surely, 2^34474478157 is an apocalyptic number.

It is an amenable number.

34474478157 is a deficient number, since it is larger than the sum of its proper divisors (22565453363).

34474478157 is a wasteful number, since it uses less digits than its factorization.

34474478157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246953 (or 1246950 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 54.

The spelling of 34474478157 in words is "thirty-four billion, four hundred seventy-four million, four hundred seventy-eight thousand, one hundred fifty-seven".