12540369370 has 16 divisors (see below), whose sum is σ = 23351033160. Its totient is φ = 4843177024.

The previous prime is 12540369367. The next prime is 12540369389. The reversal of 12540369370 is 7396304521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12220639209 + 319730161 = 110547^2 + 17881^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21621037 + ... + 21621616.

Almost surely, 2^12540369370 is an apocalyptic number.

12540369370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12540369370 is a deficient number, since it is larger than the sum of its proper divisors (10810663790).

12540369370 is a wasteful number, since it uses less digits than its factorization.

12540369370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43242689.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 12540369370 in words is "twelve billion, five hundred forty million, three hundred sixty-nine thousand, three hundred seventy".