6157819806 has 16 divisors (see below), whose sum is σ = 12740317200. Its totient is φ = 1981827008.

The previous prime is 6157819769. The next prime is 6157819841. The reversal of 6157819806 is 6089187516.

It is a congruent number.

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, 17694711 + ... + 17695058.

It is an arithmetic number, because the mean of its divisors is an integer number (796269825).

Almost surely, 2^6157819806 is an apocalyptic number.

6157819806 is an abundant number, since it is smaller than the sum of its proper divisors (6582497394).

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

6157819806 is a wasteful number, since it uses less digits than its factorization.

6157819806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35389803.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 6157819806 is about 78471.7771303798. Note that the first 3 decimals coincide. The cubic root of 6157819806 is about 1832.9150000958.

The spelling of 6157819806 in words is "six billion, one hundred fifty-seven million, eight hundred nineteen thousand, eight hundred six".