47172207040 has 56 divisors (see below), whose sum is σ = 128375798112. Its totient is φ = 16173327360.

The previous prime is 47172206993. The next prime is 47172207067. The reversal of 47172207040 is 4070227174.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47172206987 and 47172207005.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 10527271 + ... + 10531750.

Almost surely, 2^47172207040 is an apocalyptic number.

47172207040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47172207040 is an abundant number, since it is smaller than the sum of its proper divisors (81203591072).

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

47172207040 is a wasteful number, since it uses less digits than its factorization.

47172207040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21059045 (or 21059035 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The spelling of 47172207040 in words is "forty-seven billion, one hundred seventy-two million, two hundred seven thousand, forty".