73334712640 has 56 divisors (see below), whose sum is σ = 199575188352. Its totient is φ = 25143329280.

The previous prime is 73334712631. The next prime is 73334712701. The reversal of 73334712640 is 4621743337.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 73334712593 and 73334712602.

It is a congruent number.

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, 16367116 + ... + 16371595.

Almost surely, 2^73334712640 is an apocalyptic number.

73334712640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73334712640 is an abundant number, since it is smaller than the sum of its proper divisors (126240475712).

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

73334712640 is a wasteful number, since it uses less digits than its factorization.

73334712640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32738735 (or 32738725 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 73334712640 in words is "seventy-three billion, three hundred thirty-four million, seven hundred twelve thousand, six hundred forty".