73891140384 has 48 divisors (see below), whose sum is σ = 194210902368. Its totient is φ = 24599058432.

The previous prime is 73891140269. The next prime is 73891140397. The reversal of 73891140384 is 48304119837.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 413457 + ... + 564560.

It is an arithmetic number, because the mean of its divisors is an integer number (4046060466).

Almost surely, 2^73891140384 is an apocalyptic number.

It is an amenable number.

73891140384 is an abundant number, since it is smaller than the sum of its proper divisors (120319761984).

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

73891140384 is a wasteful number, since it uses less digits than its factorization.

73891140384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978817 (or 978809 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 73891140384 in words is "seventy-three billion, eight hundred ninety-one million, one hundred forty thousand, three hundred eighty-four".