78093074997 has 96 divisors (see below), whose sum is σ = 135334477824. Its totient is φ = 44079422400.

The previous prime is 78093074977. The next prime is 78093075007. The reversal of 78093074997 is 79947039087.

It is not a de Polignac number, because 78093074997 - 2⁷ = 78093074869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78093074977) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51007122 + ... + 51008652.

It is an arithmetic number, because the mean of its divisors is an integer number (1409734144).

Almost surely, 2^78093074997 is an apocalyptic number.

It is an amenable number.

78093074997 is a deficient number, since it is larger than the sum of its proper divisors (57241402827).

78093074997 is a wasteful number, since it uses less digits than its factorization.

78093074997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 78093074997 in words is "seventy-eight billion, ninety-three million, seventy-four thousand, nine hundred ninety-seven".