47051990832 has 160 divisors (see below), whose sum is σ = 154029141504. Its totient is φ = 12020889600.

The previous prime is 47051990831. The next prime is 47051990917. The reversal of 47051990832 is 23809915074.

It is a super-2 number, since 2×47051990832² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (47051990831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121108 + ... + 329804.

Almost surely, 2^47051990832 is an apocalyptic number.

47051990832 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47051990832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77014570752).

47051990832 is an abundant number, since it is smaller than the sum of its proper divisors (106977150672).

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

47051990832 is a wasteful number, since it uses less digits than its factorization.

47051990832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208787 (or 208781 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 47051990832 in words is "forty-seven billion, fifty-one million, nine hundred ninety thousand, eight hundred thirty-two".