73800921285 has 432 divisors, whose sum is σ = 176419361664. Its totient is φ = 28817171712.

The previous prime is 73800921269. The next prime is 73800921319. The reversal of 73800921285 is 58212900837.

It is a happy number.

It is not a de Polignac number, because 73800921285 - 2⁴ = 73800921269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 73800921285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 1716300474 + ... + 1716300516.

It is an arithmetic number, because the mean of its divisors is an integer number (408378152).

Almost surely, 2^73800921285 is an apocalyptic number.

It is an amenable number.

73800921285 is an abundant number, since it is smaller than the sum of its proper divisors (102618440379).

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

73800921285 is a wasteful number, since it uses less digits than its factorization.

73800921285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 73800921285 in words is "seventy-three billion, eight hundred million, nine hundred twenty-one thousand, two hundred eighty-five".