641848940492 has 48 divisors (see below), whose sum is σ = 1189054648320. Its totient is φ = 302702227200.

The previous prime is 641848940489. The next prime is 641848940549. The reversal of 641848940492 is 294049848146.

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, 1176059 + ... + 1633037.

It is an arithmetic number, because the mean of its divisors is an integer number (24771971840).

Almost surely, 2^641848940492 is an apocalyptic number.

641848940492 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

641848940492 is a deficient number, since it is larger than the sum of its proper divisors (547205707828).

641848940492 is a wasteful number, since it uses less digits than its factorization.

641848940492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457302 (or 457300 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 59.

The spelling of 641848940492 in words is "six hundred forty-one billion, eight hundred forty-eight million, nine hundred forty thousand, four hundred ninety-two".