2515120738 has 16 divisors (see below), whose sum is σ = 4063744440. Its totient is φ = 1160580096.

The previous prime is 2515120733. The next prime is 2515120747. The reversal of 2515120738 is 8370215152.

2515120738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1798862569 + 716258169 = 42413^2 + 26763^2 .

It is not an unprimeable number, because it can be changed into a prime (2515120733) 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, 188256 + ... + 201172.

Almost surely, 2^2515120738 is an apocalyptic number.

2515120738 is a deficient number, since it is larger than the sum of its proper divisors (1548623702).

2515120738 is a wasteful number, since it uses less digits than its factorization.

2515120738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20421.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 2515120738 is about 50150.9794321108. The cubic root of 2515120738 is about 1359.9395766840.

The spelling of 2515120738 in words is "two billion, five hundred fifteen million, one hundred twenty thousand, seven hundred thirty-eight".