47951839957 has 32 divisors (see below), whose sum is σ = 57582854144. Its totient is φ = 39065457600.

The previous prime is 47951839951. The next prime is 47951839987. The reversal of 47951839957 is 75993815974.

It is a cyclic number.

It is not a de Polignac number, because 47951839957 - 2¹⁹ = 47951315669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47951839892 and 47951839901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951839951) 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, 10415218 + ... + 10419820.

It is an arithmetic number, because the mean of its divisors is an integer number (1799464192).

Almost surely, 2^47951839957 is an apocalyptic number.

It is an amenable number.

47951839957 is a deficient number, since it is larger than the sum of its proper divisors (9631014187).

47951839957 is a wasteful number, since it uses less digits than its factorization.

47951839957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489.

The product of its digits is 85730400, while the sum is 67.

The spelling of 47951839957 in words is "forty-seven billion, nine hundred fifty-one million, eight hundred thirty-nine thousand, nine hundred fifty-seven".