3790991677021 has 4 divisors (see below), whose sum is σ = 4013991187452. Its totient is φ = 3567992166592.

The previous prime is 3790991677019. The next prime is 3790991677061. The reversal of 3790991677021 is 1207761990973.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1811944827225 + 1979046849796 = 1346085^2 + 1406786^2 .

It is a cyclic number.

It is not a de Polignac number, because 3790991677021 - 2¹ = 3790991677019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3790991677061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111499755190 + ... + 111499755223.

It is an arithmetic number, because the mean of its divisors is an integer number (1003497796863).

Almost surely, 2^{3790991677021} is an apocalyptic number.

It is an amenable number.

3790991677021 is a deficient number, since it is larger than the sum of its proper divisors (222999510431).

3790991677021 is a wasteful number, since it uses less digits than its factorization.

3790991677021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222999510430.

The product of its (nonzero) digits is 9001692, while the sum is 61.

The spelling of 3790991677021 in words is "three trillion, seven hundred ninety billion, nine hundred ninety-one million, six hundred seventy-seven thousand, twenty-one".