21477372716042 has 16 divisors (see below), whose sum is σ = 33856222991712. Its totient is φ = 10205464343760.

The previous prime is 21477372716021. The next prime is 21477372716131. The reversal of 21477372716042 is 24061727377412.

It is a super-2 number, since 2×21477372716042² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3374819684 + ... + 3374826047.

It is an arithmetic number, because the mean of its divisors is an integer number (2116013936982).

Almost surely, 2^{21477372716042} is an apocalyptic number.

21477372716042 is a deficient number, since it is larger than the sum of its proper divisors (12378850275670).

21477372716042 is a wasteful number, since it uses less digits than its factorization.

21477372716042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749645813.

The product of its (nonzero) digits is 5531904, while the sum is 53.

The spelling of 21477372716042 in words is "twenty-one trillion, four hundred seventy-seven billion, three hundred seventy-two million, seven hundred sixteen thousand, forty-two".