4157897968 has 40 divisors (see below), whose sum is σ = 9524256480. Its totient is φ = 1720508160.

The previous prime is 4157897959. The next prime is 4157897969. The reversal of 4157897968 is 8697987514.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157897969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636823 + ... + 643318.

It is an arithmetic number, because the mean of its divisors is an integer number (238106412).

Almost surely, 2^4157897968 is an apocalyptic number.

It is an amenable number.

4157897968 is an abundant number, since it is smaller than the sum of its proper divisors (5366358512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4157897968 is a wasteful number, since it uses less digits than its factorization.

4157897968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280185 (or 1280179 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

The square root of 4157897968 is about 64481.7646160525. The cubic root of 4157897968 is about 1608.0193701618.

The spelling of 4157897968 in words is "four billion, one hundred fifty-seven million, eight hundred ninety-seven thousand, nine hundred sixty-eight".