78325125439604 has 12 divisors (see below), whose sum is σ = 137070567344004. Its totient is φ = 39162106198464.

The previous prime is 78325125439597. The next prime is 78325125439621. The reversal of 78325125439604 is 40693452152387.

It can be written as a sum of positive squares in 2 ways, for example, as 17881497737104 + 60443627702500 = 4228652^2 + 7774550^2 .

It is a super-2 number, since 2×78325125439604² (a number of 29 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 3 ways as a sum of consecutive naturals, for example, 113744159 + ... + 114430694.

It is an arithmetic number, because the mean of its divisors is an integer number (11422547278667).

It is a 1-persistent number, because it is pandigital, but 2⋅78325125439604 = 156650250879208 is not.

Almost surely, 2^{78325125439604} is an apocalyptic number.

It is an amenable number.

78325125439604 is a deficient number, since it is larger than the sum of its proper divisors (58745441904400).

78325125439604 is a wasteful number, since it uses less digits than its factorization.

78325125439604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228260674 (or 228260672 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 78325125439604 in words is "seventy-eight trillion, three hundred twenty-five billion, one hundred twenty-five million, four hundred thirty-nine thousand, six hundred four".