47777347744 has 48 divisors (see below), whose sum is σ = 107527125888. Its totient is φ = 20470655232.

The previous prime is 47777347741. The next prime is 47777347763. The reversal of 47777347744 is 44774377774.

It is a happy number.

It is a super-2 number, since 2×47777347744² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47777347741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899989 + ... + 951595.

It is an arithmetic number, because the mean of its divisors is an integer number (2240148456).

Almost surely, 2^47777347744 is an apocalyptic number.

It is an amenable number.

47777347744 is an abundant number, since it is smaller than the sum of its proper divisors (59749778144).

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

47777347744 is a wasteful number, since it uses less digits than its factorization.

47777347744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55757 (or 55749 counting only the distinct ones).

The product of its digits is 90354432, while the sum is 61.

The spelling of 47777347744 in words is "forty-seven billion, seven hundred seventy-seven million, three hundred forty-seven thousand, seven hundred forty-four".