2515138470388 has 24 divisors (see below), whose sum is σ = 4553330128200. Its totient is φ = 1214188190208.

The previous prime is 2515138470343. The next prime is 2515138470401. The reversal of 2515138470388 is 8830748315152.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 689942874384 + 1825195596004 = 830628^2 + 1350998^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15245848 + ... + 15409936.

It is an arithmetic number, because the mean of its divisors is an integer number (189722088675).

Almost surely, 2^{2515138470388} is an apocalyptic number.

It is an amenable number.

2515138470388 is a deficient number, since it is larger than the sum of its proper divisors (2038191657812).

2515138470388 is a wasteful number, since it uses less digits than its factorization.

2515138470388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296259 (or 296257 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 2515138470388 in words is "two trillion, five hundred fifteen billion, one hundred thirty-eight million, four hundred seventy thousand, three hundred eighty-eight".