73754621540 has 48 divisors (see below), whose sum is σ = 160954214400. Its totient is φ = 28358528640.

The previous prime is 73754621527. The next prime is 73754621593. The reversal of 73754621540 is 4512645737.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 73754621491 and 73754621500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306812 + ... + 491571.

It is an arithmetic number, because the mean of its divisors is an integer number (3353212800).

Almost surely, 2^73754621540 is an apocalyptic number.

It is an amenable number.

73754621540 is an abundant number, since it is smaller than the sum of its proper divisors (87199592860).

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

73754621540 is a wasteful number, since it uses less digits than its factorization.

73754621540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798572 (or 798570 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 73754621540 in words is "seventy-three billion, seven hundred fifty-four million, six hundred twenty-one thousand, five hundred forty".