78325775750 has 64 divisors (see below), whose sum is σ = 154605447360. Its totient is φ = 29630880000.

The previous prime is 78325775719. The next prime is 78325775821. The reversal of 78325775750 is 5757752387.

It is a super-2 number, since 2×78325775750² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2841032 + ... + 2868468.

It is an arithmetic number, because the mean of its divisors is an integer number (2415710115).

Almost surely, 2^78325775750 is an apocalyptic number.

78325775750 is a deficient number, since it is larger than the sum of its proper divisors (76279671610).

78325775750 is a wasteful number, since it uses less digits than its factorization.

78325775750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28074 (or 28064 counting only the distinct ones).

The product of its (nonzero) digits is 14406000, while the sum is 56.

The spelling of 78325775750 in words is "seventy-eight billion, three hundred twenty-five million, seven hundred seventy-five thousand, seven hundred fifty".