2791487530 has 32 divisors (see below), whose sum is σ = 5416604928. Its totient is φ = 1029672000.

The previous prime is 2791487527. The next prime is 2791487537. The reversal of 2791487530 is 357841972.

It is not an unprimeable number, because it can be changed into a prime (2791487537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126415 + ... + 146845.

It is an arithmetic number, because the mean of its divisors is an integer number (169268904).

Almost surely, 2^2791487530 is an apocalyptic number.

2791487530 is a deficient number, since it is larger than the sum of its proper divisors (2625117398).

2791487530 is a wasteful number, since it uses less digits than its factorization.

2791487530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21502.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 2791487530 is about 52834.5297130579. The cubic root of 2791487530 is about 1408.0299651019.

The spelling of 2791487530 in words is "two billion, seven hundred ninety-one million, four hundred eighty-seven thousand, five hundred thirty".