73221077754 has 36 divisors (see below), whose sum is σ = 174379128378. Its totient is φ = 22188204720.

The previous prime is 73221077747. The next prime is 73221077767. The reversal of 73221077754 is 45777012237.

It can be written as a sum of positive squares in only one way, i.e., 73135089225 + 85988529 = 270435^2 + 9273^2 .

It is a super-2 number, since 2×73221077754² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16807069 + ... + 16811424.

Almost surely, 2^73221077754 is an apocalyptic number.

73221077754 is an abundant number, since it is smaller than the sum of its proper divisors (101158050624).

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

73221077754 is a wasteful number, since it uses less digits than its factorization.

73221077754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33618523 (or 33618509 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 73221077754 in words is "seventy-three billion, two hundred twenty-one million, seventy-seven thousand, seven hundred fifty-four".