73516262640 has 40 divisors (see below), whose sum is σ = 227900414928. Its totient is φ = 19604336640.

The previous prime is 73516262627. The next prime is 73516262641. The reversal of 73516262640 is 4626261537.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 73516262592 and 73516262601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73516262641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153158641 + ... + 153159120.

Almost surely, 2^73516262640 is an apocalyptic number.

It is an amenable number.

73516262640 is an abundant number, since it is smaller than the sum of its proper divisors (154384152288).

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

73516262640 is a wasteful number, since it uses less digits than its factorization.

73516262640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306317777 (or 306317771 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 73516262640 in words is "seventy-three billion, five hundred sixteen million, two hundred sixty-two thousand, six hundred forty".