73899640870 has 16 divisors (see below), whose sum is σ = 145112022288. Its totient is φ = 26872596640.

The previous prime is 73899640853. The next prime is 73899640879. The reversal of 73899640870 is 7804699837.

It is a super-2 number, since 2×73899640870² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73899640799 and 73899640808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73899640879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335907349 + ... + 335907568.

It is an arithmetic number, because the mean of its divisors is an integer number (9069501393).

Almost surely, 2^73899640870 is an apocalyptic number.

73899640870 is a deficient number, since it is larger than the sum of its proper divisors (71212381418).

73899640870 is a wasteful number, since it uses less digits than its factorization.

73899640870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671814935.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 73899640870 in words is "seventy-three billion, eight hundred ninety-nine million, six hundred forty thousand, eight hundred seventy".