7894057465 has 16 divisors (see below), whose sum is σ = 11175367680. Its totient is φ = 5238452160.

The previous prime is 7894057439. The next prime is 7894057513. The reversal of 7894057465 is 5647504987.

It is not a de Polignac number, because 7894057465 - 2²⁹ = 7357186553 is a prime.

It is a super-2 number, since 2×7894057465² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636730 + ... + 3638899.

It is an arithmetic number, because the mean of its divisors is an integer number (698460480).

Almost surely, 2^7894057465 is an apocalyptic number.

It is an amenable number.

7894057465 is a deficient number, since it is larger than the sum of its proper divisors (3281310215).

7894057465 is a wasteful number, since it uses less digits than its factorization.

7894057465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275672.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The square root of 7894057465 is about 88848.5085130865. The cubic root of 7894057465 is about 1991.1321945420.

The spelling of 7894057465 in words is "seven billion, eight hundred ninety-four million, fifty-seven thousand, four hundred sixty-five".