2920451657 has 8 divisors (see below), whose sum is σ = 3060184320. Its totient is φ = 2781782080.

The previous prime is 2920451647. The next prime is 2920451659. The reversal of 2920451657 is 7561540292.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2920451657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920451659) 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, 260144 + ... + 271137.

It is an arithmetic number, because the mean of its divisors is an integer number (382523040).

Almost surely, 2^2920451657 is an apocalyptic number.

It is an amenable number.

2920451657 is a deficient number, since it is larger than the sum of its proper divisors (139732663).

2920451657 is a wasteful number, since it uses less digits than its factorization.

2920451657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531543.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2920451657 is about 54041.2033267210. The cubic root of 2920451657 is about 1429.3875899852.

The spelling of 2920451657 in words is "two billion, nine hundred twenty million, four hundred fifty-one thousand, six hundred fifty-seven".