311939644900890 has 16 divisors (see below), whose sum is σ = 748655147762208. Its totient is φ = 83183905306896.

The previous prime is 311939644900861. The next prime is 311939644900913. The reversal of 311939644900890 is 98009446939113.

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, 5198994081652 + ... + 5198994081711.

It is an arithmetic number, because the mean of its divisors is an integer number (46790946735138).

Almost surely, 2^{311939644900890} is an apocalyptic number.

311939644900890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

311939644900890 is an abundant number, since it is smaller than the sum of its proper divisors (436715502861318).

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

311939644900890 is a wasteful number, since it uses less digits than its factorization.

311939644900890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397988163373.

The product of its (nonzero) digits is 45349632, while the sum is 66.

The spelling of 311939644900890 in words is "three hundred eleven trillion, nine hundred thirty-nine billion, six hundred forty-four million, nine hundred thousand, eight hundred ninety".