421390814670 has 128 divisors (see below), whose sum is σ = 1351830297600. Its totient is φ = 91248529536.

The previous prime is 421390814653. The next prime is 421390814681. The reversal of 421390814670 is 76418093124.

421390814670 is a `hidden beast` number, since 4 + 21 + 3 + 90 + 81 + 467 + 0 = 666.

421390814670 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5831409 + ... + 5903228.

It is an arithmetic number, because the mean of its divisors is an integer number (10561174200).

Almost surely, 2^421390814670 is an apocalyptic number.

421390814670 is an abundant number, since it is smaller than the sum of its proper divisors (930439482930).

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

421390814670 is a wasteful number, since it uses less digits than its factorization.

421390814670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11734679 (or 11734673 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 421390814670 in words is "four hundred twenty-one billion, three hundred ninety million, eight hundred fourteen thousand, six hundred seventy".