21260414315 has 32 divisors (see below), whose sum is σ = 30178431360. Its totient is φ = 14068454400.

The previous prime is 21260414311. The next prime is 21260414317. The reversal of 21260414315 is 51341406212.

It is not a de Polignac number, because 21260414315 - 2² = 21260414311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (21260414311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2473325 + ... + 2481905.

It is an arithmetic number, because the mean of its divisors is an integer number (943075980).

Almost surely, 2^21260414315 is an apocalyptic number.

21260414315 is a deficient number, since it is larger than the sum of its proper divisors (8918017045).

21260414315 is a wasteful number, since it uses less digits than its factorization.

21260414315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11063.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 21260414315 in words is "twenty-one billion, two hundred sixty million, four hundred fourteen thousand, three hundred fifteen".