73622286920 has 128 divisors (see below), whose sum is σ = 215870054400. Its totient is φ = 21929619456.

The previous prime is 73622286917. The next prime is 73622286929. The reversal of 73622286920 is 2968222637.

It is a happy number.

It is a super-2 number, since 2×73622286920² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73622286929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533000 + ... + 656759.

It is an arithmetic number, because the mean of its divisors is an integer number (1686484800).

Almost surely, 2^73622286920 is an apocalyptic number.

73622286920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73622286920 is an abundant number, since it is smaller than the sum of its proper divisors (142247767480).

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

73622286920 is a wasteful number, since it uses less digits than its factorization.

73622286920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189807 (or 1189803 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 73622286920 in words is "seventy-three billion, six hundred twenty-two million, two hundred eighty-six thousand, nine hundred twenty".