621342261465 has 16 divisors (see below), whose sum is σ = 995281217088. Its totient is φ = 331004673216.

The previous prime is 621342261451. The next prime is 621342261503. The reversal of 621342261465 is 564162243126.

It is a happy number.

It is not a de Polignac number, because 621342261465 - 2⁶ = 621342261401 is a prime.

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, 23603047 + ... + 23629356.

It is an arithmetic number, because the mean of its divisors is an integer number (62205076068).

Almost surely, 2^621342261465 is an apocalyptic number.

It is an amenable number.

621342261465 is a deficient number, since it is larger than the sum of its proper divisors (373938955623).

621342261465 is a wasteful number, since it uses less digits than its factorization.

621342261465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47233288.

The product of its digits is 414720, while the sum is 42.

The spelling of 621342261465 in words is "six hundred twenty-one billion, three hundred forty-two million, two hundred sixty-one thousand, four hundred sixty-five".