12462138490 has 16 divisors (see below), whose sum is σ = 23751370152. Its totient is φ = 4691628544.

The previous prime is 12462138487. The next prime is 12462138497. The reversal of 12462138490 is 9483126421.

It can be written as a sum of positive squares in 4 ways, for example, as 7474812849 + 4987325641 = 86457^2 + 70621^2 .

It is not an unprimeable number, because it can be changed into a prime (12462138497) 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, 36653179 + ... + 36653518.

Almost surely, 2^12462138490 is an apocalyptic number.

12462138490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12462138490 is a deficient number, since it is larger than the sum of its proper divisors (11289231662).

12462138490 is a wasteful number, since it uses less digits than its factorization.

12462138490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73306721.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 12462138490 in words is "twelve billion, four hundred sixty-two million, one hundred thirty-eight thousand, four hundred ninety".