90573177012 has 12 divisors (see below), whose sum is σ = 211337413056. Its totient is φ = 30191059000.

The previous prime is 90573177001. The next prime is 90573177017. The reversal of 90573177012 is 21077137509.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90573177017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3773882364 + ... + 3773882387.

It is an arithmetic number, because the mean of its divisors is an integer number (17611451088).

Almost surely, 2^90573177012 is an apocalyptic number.

It is an amenable number.

90573177012 is an abundant number, since it is smaller than the sum of its proper divisors (120764236044).

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

90573177012 is a wasteful number, since it uses less digits than its factorization.

90573177012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547764758 (or 7547764756 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 42.

The spelling of 90573177012 in words is "ninety billion, five hundred seventy-three million, one hundred seventy-seven thousand, twelve".