7913897534 has 16 divisors (see below), whose sum is σ = 11901709296. Its totient is φ = 3946675200.

The previous prime is 7913897507. The next prime is 7913897539. The reversal of 7913897534 is 4357983197.

It is a self number, because there is not a number n which added to its sum of digits gives 7913897534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913897539) 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, 1511429 + ... + 1516655.

It is an arithmetic number, because the mean of its divisors is an integer number (743856831).

Almost surely, 2^7913897534 is an apocalyptic number.

7913897534 is a deficient number, since it is larger than the sum of its proper divisors (3987811762).

7913897534 is a wasteful number, since it uses less digits than its factorization.

7913897534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051.

The product of its digits is 5715360, while the sum is 56.

The square root of 7913897534 is about 88960.0895570592. The cubic root of 7913897534 is about 1992.7988976810.

The spelling of 7913897534 in words is "seven billion, nine hundred thirteen million, eight hundred ninety-seven thousand, five hundred thirty-four".