21426034080154 has 32 divisors (see below), whose sum is σ = 35347178623680. Its totient is φ = 9659867145600.

The previous prime is 21426034080131. The next prime is 21426034080163. The reversal of 21426034080154 is 45108043062412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6516499 + ... + 9236710.

It is an arithmetic number, because the mean of its divisors is an integer number (1104599331990).

Almost surely, 2^{21426034080154} is an apocalyptic number.

21426034080154 is a deficient number, since it is larger than the sum of its proper divisors (13921144543526).

21426034080154 is a wasteful number, since it uses less digits than its factorization.

21426034080154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15753726.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 21426034080154 in words is "twenty-one trillion, four hundred twenty-six billion, thirty-four million, eighty thousand, one hundred fifty-four".