79402385487 has 8 divisors (see below), whose sum is σ = 105871151104. Its totient is φ = 52934271768.

The previous prime is 79402385471. The next prime is 79402385539. The reversal of 79402385487 is 78458320497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79402385487 - 2⁴ = 79402385471 is a prime.

It is a super-2 number, since 2×79402385487² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79402385407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373728 + ... + 546330.

It is an arithmetic number, because the mean of its divisors is an integer number (13233893888).

Almost surely, 2^79402385487 is an apocalyptic number.

79402385487 is a deficient number, since it is larger than the sum of its proper divisors (26468765617).

79402385487 is a wasteful number, since it uses less digits than its factorization.

79402385487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325949.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 79402385487 in words is "seventy-nine billion, four hundred two million, three hundred eighty-five thousand, four hundred eighty-seven".