73775073780 has 120 divisors (see below), whose sum is σ = 243616037280. Its totient is φ = 18637905600.

The previous prime is 73775073773. The next prime is 73775073809. The reversal of 73775073780 is 8737057737.

It is a super-2 number, since 2×73775073780² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1167646 + ... + 1229205.

It is an arithmetic number, because the mean of its divisors is an integer number (2030133644).

Almost surely, 2^73775073780 is an apocalyptic number.

It is an amenable number.

73775073780 is an abundant number, since it is smaller than the sum of its proper divisors (169840963500).

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

73775073780 is a wasteful number, since it uses less digits than its factorization.

73775073780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396891 (or 2396880 counting only the distinct ones).

The product of its (nonzero) digits is 6050520, while the sum is 54.

The spelling of 73775073780 in words is "seventy-three billion, seven hundred seventy-five million, seventy-three thousand, seven hundred eighty".