73733976540 has 96 divisors (see below), whose sum is σ = 262165263360. Its totient is φ = 16853479488.

The previous prime is 73733976539. The next prime is 73733976553. The reversal of 73733976540 is 4567933737.

73733976540 is a `hidden beast` number, since 7 + 3 + 7 + 3 + 3 + 97 + 6 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9749392 + ... + 9756951.

It is an arithmetic number, because the mean of its divisors is an integer number (2730888160).

Almost surely, 2^73733976540 is an apocalyptic number.

73733976540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73733976540 is an abundant number, since it is smaller than the sum of its proper divisors (188431286820).

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

73733976540 is a wasteful number, since it uses less digits than its factorization.

73733976540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19506368 (or 19506360 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 54.

The spelling of 73733976540 in words is "seventy-three billion, seven hundred thirty-three million, nine hundred seventy-six thousand, five hundred forty".