21470025677 has 8 divisors (see below), whose sum is σ = 22292336640. Its totient is φ = 20653179120.

The previous prime is 21470025641. The next prime is 21470025691. The reversal of 21470025677 is 77652007412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21470025677 - 2¹⁴ = 21470009293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470025077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358093 + ... + 1373810.

It is an arithmetic number, because the mean of its divisors is an integer number (2786542080).

Almost surely, 2^21470025677 is an apocalyptic number.

It is an amenable number.

21470025677 is a deficient number, since it is larger than the sum of its proper divisors (822310963).

21470025677 is a wasteful number, since it uses less digits than its factorization.

21470025677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732203.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 21470025677 in words is "twenty-one billion, four hundred seventy million, twenty-five thousand, six hundred seventy-seven".