73749744920 has 32 divisors (see below), whose sum is σ = 166269510000. Its totient is φ = 29440771968.

The previous prime is 73749744889. The next prime is 73749744979. The reversal of 73749744920 is 2944794737.

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, 1827479 + ... + 1867398.

Almost surely, 2^73749744920 is an apocalyptic number.

It is an amenable number.

73749744920 is an abundant number, since it is smaller than the sum of its proper divisors (92519765080).

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

73749744920 is a wasteful number, since it uses less digits than its factorization.

73749744920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695387 (or 3695383 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 73749744920 in words is "seventy-three billion, seven hundred forty-nine million, seven hundred forty-four thousand, nine hundred twenty".