90934821877 has 16 divisors (see below), whose sum is σ = 94806391680. Its totient is φ = 87115000000.

The previous prime is 90934821851. The next prime is 90934821931. The reversal of 90934821877 is 77812843909.

It is a cyclic number.

It is not a de Polignac number, because 90934821877 - 2⁷ = 90934821749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90934821977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890627 + ... + 1938127.

It is an arithmetic number, because the mean of its divisors is an integer number (5925399480).

Almost surely, 2^90934821877 is an apocalyptic number.

It is an amenable number.

90934821877 is a deficient number, since it is larger than the sum of its proper divisors (3871569803).

90934821877 is a wasteful number, since it uses less digits than its factorization.

90934821877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48044.

The product of its (nonzero) digits is 6096384, while the sum is 58.

It can be divided in two parts, 909348 and 21877, that added together give a square (931225 = 965²).

The spelling of 90934821877 in words is "ninety billion, nine hundred thirty-four million, eight hundred twenty-one thousand, eight hundred seventy-seven".