901986806992 has 10 divisors (see below), whose sum is σ = 1747599438578. Its totient is φ = 450993403488.

The previous prime is 901986806977. The next prime is 901986806999. The reversal of 901986806992 is 299608689109.

It can be written as a sum of positive squares in only one way, i.e., 486807616656 + 415179190336 = 697716^2 + 644344^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901986806999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28187087703 + ... + 28187087734.

Almost surely, 2^901986806992 is an apocalyptic number.

It is an amenable number.

901986806992 is a deficient number, since it is larger than the sum of its proper divisors (845612631586).

901986806992 is a wasteful number, since it uses less digits than its factorization.

901986806992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56374175445 (or 56374175439 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 67.

The spelling of 901986806992 in words is "nine hundred one billion, nine hundred eighty-six million, eight hundred six thousand, nine hundred ninety-two".