78941657379 has 16 divisors (see below), whose sum is σ = 118280477952. Its totient is φ = 46467329568.

The previous prime is 78941657341. The next prime is 78941657423. The reversal of 78941657379 is 97375614987.

It is not a de Polignac number, because 78941657379 - 2¹⁹ = 78941133091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78941657329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44002257 + ... + 44004050.

It is an arithmetic number, because the mean of its divisors is an integer number (7392529872).

Almost surely, 2^78941657379 is an apocalyptic number.

78941657379 is a deficient number, since it is larger than the sum of its proper divisors (39338820573).

78941657379 is a wasteful number, since it uses less digits than its factorization.

78941657379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88006346.

The product of its digits is 80015040, while the sum is 66.

The spelling of 78941657379 in words is "seventy-eight billion, nine hundred forty-one million, six hundred fifty-seven thousand, three hundred seventy-nine".