78011525750450 has 48 divisors (see below), whose sum is σ = 145160453707776. Its totient is φ = 31191920760000.

The previous prime is 78011525750447. The next prime is 78011525750471. The reversal of 78011525750450 is 5405752511087.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2362322639 + ... + 2362355661.

It is an arithmetic number, because the mean of its divisors is an integer number (3024176118912).

Almost surely, 2^{78011525750450} is an apocalyptic number.

78011525750450 is a deficient number, since it is larger than the sum of its proper divisors (67148927957326).

78011525750450 is a wasteful number, since it uses less digits than its factorization.

78011525750450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50819 (or 50814 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 50.

The spelling of 78011525750450 in words is "seventy-eight trillion, eleven billion, five hundred twenty-five million, seven hundred fifty thousand, four hundred fifty".