73273994840 has 16 divisors (see below), whose sum is σ = 164866488480. Its totient is φ = 29309597920.

The previous prime is 73273994837. The next prime is 73273994861. The reversal of 73273994840 is 4849937237.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915924896 + ... + 915924975.

It is an arithmetic number, because the mean of its divisors is an integer number (10304155530).

Almost surely, 2^73273994840 is an apocalyptic number.

It is an amenable number.

73273994840 is an abundant number, since it is smaller than the sum of its proper divisors (91592493640).

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

73273994840 is a wasteful number, since it uses less digits than its factorization.

73273994840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831849882 (or 1831849878 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 73273994840 in words is "seventy-three billion, two hundred seventy-three million, nine hundred ninety-four thousand, eight hundred forty".