5157926578 has 16 divisors (see below), whose sum is σ = 8853951744. Its totient is φ = 2207592000.

The previous prime is 5157926539. The next prime is 5157926581. The reversal of 5157926578 is 8756297515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234775 + ... + 255802.

It is an arithmetic number, because the mean of its divisors is an integer number (553371984).

Almost surely, 2^5157926578 is an apocalyptic number.

5157926578 is a deficient number, since it is larger than the sum of its proper divisors (3696025166).

5157926578 is a wasteful number, since it uses less digits than its factorization.

5157926578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491337.

The product of its digits is 5292000, while the sum is 55.

The square root of 5157926578 is about 71818.7063236313. The cubic root of 5157926578 is about 1727.7930334915.

The spelling of 5157926578 in words is "five billion, one hundred fifty-seven million, nine hundred twenty-six thousand, five hundred seventy-eight".