73653740400 has 60 divisors (see below), whose sum is σ = 235937485592. Its totient is φ = 19640997120.

The previous prime is 73653740393. The next prime is 73653740411. The reversal of 73653740400 is 404735637.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30687859 + ... + 30690258.

Almost surely, 2^73653740400 is an apocalyptic number.

It is an amenable number.

73653740400 is an abundant number, since it is smaller than the sum of its proper divisors (162283745192).

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

73653740400 is a wasteful number, since it uses less digits than its factorization.

73653740400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61378138 (or 61378127 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 73653740400 in words is "seventy-three billion, six hundred fifty-three million, seven hundred forty thousand, four hundred".