7742465657 has 4 divisors (see below), whose sum is σ = 7793740416. Its totient is φ = 7691190900.

The previous prime is 7742465641. The next prime is 7742465713. The reversal of 7742465657 is 7565642477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7742465657 - 2⁴ = 7742465641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7742465599 and 7742465608.

It is not an unprimeable number, because it can be changed into a prime (7742464657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25637153 + ... + 25637454.

It is an arithmetic number, because the mean of its divisors is an integer number (1948435104).

Almost surely, 2^7742465657 is an apocalyptic number.

It is an amenable number.

7742465657 is a deficient number, since it is larger than the sum of its proper divisors (51274759).

7742465657 is a wasteful number, since it uses less digits than its factorization.

7742465657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51274758.

The product of its digits is 9878400, while the sum is 53.

The square root of 7742465657 is about 87991.2817101785. The cubic root of 7742465657 is about 1978.3043041605.

The spelling of 7742465657 in words is "seven billion, seven hundred forty-two million, four hundred sixty-five thousand, six hundred fifty-seven".