2164251474 has 80 divisors (see below), whose sum is σ = 6046197696. Its totient is φ = 562140000.

The previous prime is 2164251473. The next prime is 2164251491. The reversal of 2164251474 is 4741524612.

2164251474 is a `hidden beast` number, since 2 + 1 + 642 + 5 + 1 + 4 + 7 + 4 = 666.

It is a super-2 number, since 2×2164251474² = 9367968885422345352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2164251473) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74277 + ... + 99224.

Almost surely, 2^2164251474 is an apocalyptic number.

2164251474 is an abundant number, since it is smaller than the sum of its proper divisors (3881946222).

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

2164251474 is a wasteful number, since it uses less digits than its factorization.

2164251474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173533 (or 173524 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2164251474 is about 46521.5162478611. The cubic root of 2164251474 is about 1293.5083621807.

The spelling of 2164251474 in words is "two billion, one hundred sixty-four million, two hundred fifty-one thousand, four hundred seventy-four".