621377840522 has 8 divisors (see below), whose sum is σ = 953742732096. Its totient is φ = 303463596492.

The previous prime is 621377840491. The next prime is 621377840561. The reversal of 621377840522 is 225048773126.

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

It is a super-2 number, since 2×621377840522² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612661778 + ... + 3612661949.

It is an arithmetic number, because the mean of its divisors is an integer number (119217841512).

Almost surely, 2^621377840522 is an apocalyptic number.

621377840522 is a deficient number, since it is larger than the sum of its proper divisors (332364891574).

621377840522 is a wasteful number, since it uses less digits than its factorization.

621377840522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225323772.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 621377840522 in words is "six hundred twenty-one billion, three hundred seventy-seven million, eight hundred forty thousand, five hundred twenty-two".