78073275001 has 4 divisors (see below), whose sum is σ = 78950502900. Its totient is φ = 77196047104.

The previous prime is 78073274977. The next prime is 78073275089. The reversal of 78073275001 is 10057237087.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13965566976 + 64107708025 = 118176^2 + 253195^2 .

It is a cyclic number.

It is not a de Polignac number, because 78073275001 - 2⁵ = 78073274969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78073270001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438613816 + ... + 438613993.

It is an arithmetic number, because the mean of its divisors is an integer number (19737625725).

Almost surely, 2^78073275001 is an apocalyptic number.

It is an amenable number.

78073275001 is a deficient number, since it is larger than the sum of its proper divisors (877227899).

78073275001 is an equidigital number, since it uses as much as digits as its factorization.

78073275001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877227898.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 78073275001 in words is "seventy-eight billion, seventy-three million, two hundred seventy-five thousand, one".