15012477421051 has 12 divisors (see below), whose sum is σ = 16509581476416. Its totient is φ = 13640872422320.

The previous prime is 15012477421043. The next prime is 15012477421147.

It is a happy number.

15012477421051 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15012477421051 - 2³ = 15012477421043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15012477420995 and 15012477421013.

It is not an unprimeable number, because it can be changed into a prime (15012477422051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30822475 + ... + 31305748.

It is an arithmetic number, because the mean of its divisors is an integer number (1375798456368).

Almost surely, 2^{15012477421051} is an apocalyptic number.

15012477421051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15012477421051 is a deficient number, since it is larger than the sum of its proper divisors (1497104055365).

15012477421051 is a wasteful number, since it uses less digits than its factorization.

15012477421051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62130242 (or 62130231 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

It can be divided in two parts, 1501247 and 7421051, that added together give a palindrome (8922298).

The spelling of 15012477421051 in words is "fifteen trillion, twelve billion, four hundred seventy-seven million, four hundred twenty-one thousand, fifty-one".