73640022670 has 32 divisors (see below), whose sum is σ = 135244196640. Its totient is φ = 28859326080.

The previous prime is 73640022667. The next prime is 73640022679. The reversal of 73640022670 is 7622004637.

It is a happy number.

It is a super-2 number, since 2×73640022670² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73640022679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277785 + ... + 473755.

It is an arithmetic number, because the mean of its divisors is an integer number (4226381145).

Almost surely, 2^73640022670 is an apocalyptic number.

73640022670 is a deficient number, since it is larger than the sum of its proper divisors (61604173970).

73640022670 is a wasteful number, since it uses less digits than its factorization.

73640022670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196740.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 73640022670 in words is "seventy-three billion, six hundred forty million, twenty-two thousand, six hundred seventy".