21542614014 has 32 divisors (see below), whose sum is σ = 43701313536. Its totient is φ = 7078911840.

The previous prime is 21542614003. The next prime is 21542614031. The reversal of 21542614014 is 41041624512.

It is a congruent 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, 29599 + ... + 209669.

It is an arithmetic number, because the mean of its divisors is an integer number (1365666048).

Almost surely, 2^21542614014 is an apocalyptic number.

21542614014 is an abundant number, since it is smaller than the sum of its proper divisors (22158699522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21542614014 is a wasteful number, since it uses less digits than its factorization.

21542614014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180360.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 21542614014 in words is "twenty-one billion, five hundred forty-two million, six hundred fourteen thousand, fourteen".