73977000000 has 196 divisors, whose sum is σ = 244670305680. Its totient is φ = 19726400000.

The previous prime is 73976999977. The next prime is 73977000037. The reversal of 73977000000 is 77937.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2987671 + ... + 3012329.

Almost surely, 2^73977000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73977000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122335152840).

73977000000 is an abundant number, since it is smaller than the sum of its proper divisors (170693305680).

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

73977000000 is an frugal number, since it uses more digits than its factorization.

73977000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24704 (or 24669 counting only the distinct ones).

The product of its (nonzero) digits is 9261, while the sum is 33.

Adding to 73977000000 its reverse (77937), we get a palindrome (73977077937).

The spelling of 73977000000 in words is "seventy-three billion, nine hundred seventy-seven million", and thus it is an aban number.