47939023954 has 4 divisors (see below), whose sum is σ = 71908535934. Its totient is φ = 23969511976.

The previous prime is 47939023933. The next prime is 47939023963. The reversal of 47939023954 is 45932093974.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43216173225 + 4722850729 = 207885^2 + 68723^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47939023895 and 47939023904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11984755987 + ... + 11984755990.

Almost surely, 2^47939023954 is an apocalyptic number.

47939023954 is a deficient number, since it is larger than the sum of its proper divisors (23969511980).

47939023954 is a wasteful number, since it uses less digits than its factorization.

47939023954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23969511979.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 47939023954 in words is "forty-seven billion, nine hundred thirty-nine million, twenty-three thousand, nine hundred fifty-four".