421625556342 has 48 divisors (see below), whose sum is σ = 947917610640. Its totient is φ = 140458564512.

The previous prime is 421625556337. The next prime is 421625556347. The reversal of 421625556342 is 243655526124.

421625556342 is a `hidden beast` number, since 4 + 2 + 1 + 6 + 2 + 5 + 5 + 5 + 634 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (421625556337) and next prime (421625556347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421625556347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 566584 + ... + 1079012.

It is an arithmetic number, because the mean of its divisors is an integer number (19748283555).

Almost surely, 2^421625556342 is an apocalyptic number.

421625556342 is an abundant number, since it is smaller than the sum of its proper divisors (526292054298).

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

421625556342 is a wasteful number, since it uses less digits than its factorization.

421625556342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514139 (or 514127 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 421625556342 in words is "four hundred twenty-one billion, six hundred twenty-five million, five hundred fifty-six thousand, three hundred forty-two".