2872157265 has 64 divisors (see below), whose sum is σ = 5249038080. Its totient is φ = 1489259520.

The previous prime is 2872157251. The next prime is 2872157279. The reversal of 2872157265 is 5627512782.

2872157265 is a `hidden beast` number, since 2 + 8 + 72 + 1 + 572 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2872157251) and next prime (2872157279).

It is not a de Polignac number, because 2872157265 - 2⁷ = 2872157137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2872157265.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1397979 + ... + 1400031.

It is an arithmetic number, because the mean of its divisors is an integer number (82016220).

Almost surely, 2^2872157265 is an apocalyptic number.

It is an amenable number.

2872157265 is a deficient number, since it is larger than the sum of its proper divisors (2376880815).

2872157265 is a wasteful number, since it uses less digits than its factorization.

2872157265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351 (or 2345 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 2872157265 is about 53592.5112772298. The cubic root of 2872157265 is about 1421.4646768123.

The spelling of 2872157265 in words is "two billion, eight hundred seventy-two million, one hundred fifty-seven thousand, two hundred sixty-five".