6400231694990 has 64 divisors (see below), whose sum is σ = 13217685110784. Its totient is φ = 2185784608128.

The previous prime is 6400231694959. The next prime is 6400231695019. The reversal of 6400231694990 is 994961320046.

It is a super-2 number, since 2×6400231694990² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296887292 + ... + 296908848.

It is an arithmetic number, because the mean of its divisors is an integer number (206526329856).

Almost surely, 2^{6400231694990} is an apocalyptic number.

6400231694990 is an abundant number, since it is smaller than the sum of its proper divisors (6817453415794).

6400231694990 is a wasteful number, since it uses less digits than its factorization.

6400231694990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37961.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 6400231694990 in words is "six trillion, four hundred billion, two hundred thirty-one million, six hundred ninety-four thousand, nine hundred ninety".