47444577761 has 12 divisors (see below), whose sum is σ = 55216507392. Its totient is φ = 40647714408.

The previous prime is 47444577737. The next prime is 47444577773. The reversal of 47444577761 is 16777544474.

It is not a de Polignac number, because 47444577761 - 2¹⁴ = 47444561377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47444577697 and 47444577706.

It is not an unprimeable number, because it can be changed into a prime (47444517761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120905 + ... + 330918.

It is an arithmetic number, because the mean of its divisors is an integer number (4601375616).

Almost surely, 2^47444577761 is an apocalyptic number.

It is an amenable number.

47444577761 is a deficient number, since it is larger than the sum of its proper divisors (7771929631).

47444577761 is a wasteful number, since it uses less digits than its factorization.

47444577761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453980 (or 453973 counting only the distinct ones).

The product of its digits is 18439680, while the sum is 56.

The spelling of 47444577761 in words is "forty-seven billion, four hundred forty-four million, five hundred seventy-seven thousand, seven hundred sixty-one".