47457322640 has 120 divisors (see below), whose sum is σ = 136547385408. Its totient is φ = 15019430400.

The previous prime is 47457322639. The next prime is 47457322669. The reversal of 47457322640 is 4622375474.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47457322591 and 47457322600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156086 + ... + 345365.

Almost surely, 2^47457322640 is an apocalyptic number.

47457322640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47457322640 is an abundant number, since it is smaller than the sum of its proper divisors (89090062768).

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

47457322640 is a wasteful number, since it uses less digits than its factorization.

47457322640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501497 (or 501478 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 44.

The spelling of 47457322640 in words is "forty-seven billion, four hundred fifty-seven million, three hundred twenty-two thousand, six hundred forty".