21401886519080 has 64 divisors (see below), whose sum is σ = 49436284538880. Its totient is φ = 8334743680000.

The previous prime is 21401886519059. The next prime is 21401886519121. The reversal of 21401886519080 is 8091568810412.

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, 29441921 + ... + 30160080.

It is an arithmetic number, because the mean of its divisors is an integer number (772441945920).

Almost surely, 2^{21401886519080} is an apocalyptic number.

21401886519080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21401886519080 is an abundant number, since it is smaller than the sum of its proper divisors (28034398019800).

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

21401886519080 is a wasteful number, since it uses less digits than its factorization.

21401886519080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59602250 (or 59602246 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 53.

The spelling of 21401886519080 in words is "twenty-one trillion, four hundred one billion, eight hundred eighty-six million, five hundred nineteen thousand, eighty".