12512511490 has 16 divisors (see below), whose sum is σ = 22524594048. Its totient is φ = 5004543856.

The previous prime is 12512511481. The next prime is 12512511607. The reversal of 12512511490 is 9411521521.

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, 69909 + ... + 172951.

It is an arithmetic number, because the mean of its divisors is an integer number (1407787128).

Almost surely, 2^12512511490 is an apocalyptic number.

12512511490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512511490 is a deficient number, since it is larger than the sum of its proper divisors (10012082558).

12512511490 is a wasteful number, since it uses less digits than its factorization.

12512511490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115193.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 12512511490 in words is "twelve billion, five hundred twelve million, five hundred eleven thousand, four hundred ninety".