73621835690 has 16 divisors (see below), whose sum is σ = 142713097128. Its totient is φ = 27183446976.

The previous prime is 73621835687. The next prime is 73621835701. The reversal of 73621835690 is 9653812637.

It can be written as a sum of positive squares in 4 ways, for example, as 61535251969 + 12086583721 = 248063^2 + 109939^2 .

It is a super-2 number, since 2×73621835690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283160777 + ... + 283161036.

Almost surely, 2^73621835690 is an apocalyptic number.

73621835690 is a deficient number, since it is larger than the sum of its proper divisors (69091261438).

73621835690 is a wasteful number, since it uses less digits than its factorization.

73621835690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566321833.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 73621835690 in words is "seventy-three billion, six hundred twenty-one million, eight hundred thirty-five thousand, six hundred ninety".