626415345420 has 48 divisors (see below), whose sum is σ = 1754896738560. Its totient is φ = 166955161536.

The previous prime is 626415345401. The next prime is 626415345467. The reversal of 626415345420 is 24543514626.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665402 + ... + 2890881.

It is an arithmetic number, because the mean of its divisors is an integer number (36560348720).

Almost surely, 2^626415345420 is an apocalyptic number.

626415345420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

626415345420 is an abundant number, since it is smaller than the sum of its proper divisors (1128481393140).

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

626415345420 is a wasteful number, since it uses less digits than its factorization.

626415345420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558174 (or 5558172 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 626415345420 in words is "six hundred twenty-six billion, four hundred fifteen million, three hundred forty-five thousand, four hundred twenty".