5111394651 has 24 divisors (see below), whose sum is σ = 8323427280. Its totient is φ = 3097812960.

The previous prime is 5111394593. The next prime is 5111394667. The reversal of 5111394651 is 1564931115.

5111394651 is a `hidden beast` number, since 511 + 1 + 3 + 94 + 6 + 51 = 666.

It is not a de Polignac number, because 5111394651 - 2⁹ = 5111394139 is a prime.

It is a super-2 number, since 2×5111394651² = 52252710556542823602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111394251) 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, 779010 + ... + 785543.

It is an arithmetic number, because the mean of its divisors is an integer number (346809470).

Almost surely, 2^5111394651 is an apocalyptic number.

5111394651 is a deficient number, since it is larger than the sum of its proper divisors (3212032629).

5111394651 is a wasteful number, since it uses less digits than its factorization.

5111394651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564584 (or 1564567 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 5111394651 is about 71494.0182882456. The cubic root of 5111394651 is about 1722.5816031270.

The spelling of 5111394651 in words is "five billion, one hundred eleven million, three hundred ninety-four thousand, six hundred fifty-one".