90375609771 has 12 divisors (see below), whose sum is σ = 130733687448. Its totient is φ = 60162188064.

The previous prime is 90375609767. The next prime is 90375609799. The reversal of 90375609771 is 17790657309.

90375609771 is a `hidden beast` number, since 9 + 0 + 3 + 7 + 560 + 9 + 7 + 71 = 666.

It is not a de Polignac number, because 90375609771 - 2² = 90375609767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90375609871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7345050 + ... + 7357343.

It is an arithmetic number, because the mean of its divisors is an integer number (10894473954).

Almost surely, 2^90375609771 is an apocalyptic number.

90375609771 is a deficient number, since it is larger than the sum of its proper divisors (40358077677).

90375609771 is a wasteful number, since it uses less digits than its factorization.

90375609771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14703082 (or 14703079 counting only the distinct ones).

The product of its (nonzero) digits is 2500470, while the sum is 54.

The spelling of 90375609771 in words is "ninety billion, three hundred seventy-five million, six hundred nine thousand, seven hundred seventy-one".