7899896714689 has 16 divisors (see below), whose sum is σ = 9458004441600. Its totient is φ = 6455088005184.

The previous prime is 7899896714657. The next prime is 7899896714729. The reversal of 7899896714689 is 9864176989987.

It is not a de Polignac number, because 7899896714689 - 2⁵ = 7899896714657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7899896714639) 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, 246286162 + ... + 246318235.

It is an arithmetic number, because the mean of its divisors is an integer number (591125277600).

Almost surely, 2^{7899896714689} is an apocalyptic number.

7899896714689 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7899896714689 is a deficient number, since it is larger than the sum of its proper divisors (1558107726911).

7899896714689 is a wasteful number, since it uses less digits than its factorization.

7899896714689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492604512.

The product of its digits is 23702740992, while the sum is 91.

The spelling of 7899896714689 in words is "seven trillion, eight hundred ninety-nine billion, eight hundred ninety-six million, seven hundred fourteen thousand, six hundred eighty-nine".