90062577791721 has 48 divisors (see below), whose sum is σ = 141526214444160. Its totient is φ = 57154816736640.

The previous prime is 90062577791717. The next prime is 90062577791741. The reversal of 90062577791721 is 12719777526009.

It is not a de Polignac number, because 90062577791721 - 2² = 90062577791717 is a prime.

It is a super-2 number, since 2×90062577791721² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90062577791741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89501580 + ... + 90502253.

It is an arithmetic number, because the mean of its divisors is an integer number (2948462800920).

Almost surely, 2^{90062577791721} is an apocalyptic number.

It is an amenable number.

90062577791721 is a deficient number, since it is larger than the sum of its proper divisors (51463636652439).

90062577791721 is a wasteful number, since it uses less digits than its factorization.

90062577791721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180003948 (or 180003936 counting only the distinct ones).

The product of its (nonzero) digits is 23337720, while the sum is 63.

The spelling of 90062577791721 in words is "ninety trillion, sixty-two billion, five hundred seventy-seven million, seven hundred ninety-one thousand, seven hundred twenty-one".