90059430977 has 8 divisors (see below), whose sum is σ = 90565179432. Its totient is φ = 89553772800.

The previous prime is 90059430973. The next prime is 90059430983. The reversal of 90059430977 is 77903495009.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11287150081 + 78772280896 = 106241^2 + 280664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90059430977 - 2² = 90059430973 is a prime.

It is a super-2 number, since 2×90059430977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90059430971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552527 + ... + 3577787.

It is an arithmetic number, because the mean of its divisors is an integer number (11320647429).

Almost surely, 2^90059430977 is an apocalyptic number.

It is an amenable number.

90059430977 is a deficient number, since it is larger than the sum of its proper divisors (505748455).

90059430977 is a wasteful number, since it uses less digits than its factorization.

90059430977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45139.

The product of its (nonzero) digits is 2143260, while the sum is 53.

The spelling of 90059430977 in words is "ninety billion, fifty-nine million, four hundred thirty thousand, nine hundred seventy-seven".