47749074464 has 96 divisors (see below), whose sum is σ = 115764235776. Its totient is φ = 18879206400.

The previous prime is 47749074437. The next prime is 47749074467. The reversal of 47749074464 is 46447094774.

It is a super-2 number, since 2×47749074464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (47749074467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7122314 + ... + 7129014.

It is an arithmetic number, because the mean of its divisors is an integer number (1205877456).

Almost surely, 2^47749074464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47749074464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57882117888).

47749074464 is an abundant number, since it is smaller than the sum of its proper divisors (68015161312).

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

47749074464 is a wasteful number, since it uses less digits than its factorization.

47749074464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 56.

The spelling of 47749074464 in words is "forty-seven billion, seven hundred forty-nine million, seventy-four thousand, four hundred sixty-four".