47252979923 has 4 divisors (see below), whose sum is σ = 47255999088. Its totient is φ = 47249960760.

The previous prime is 47252979881. The next prime is 47252979941. The reversal of 47252979923 is 32997925274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32997925274 = 2 ⋅16498962637.

It is a cyclic number.

It is not a de Polignac number, because 47252979923 - 2⁶ = 47252979859 is a prime.

It is a super-2 number, since 2×47252979923² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47252979623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485983 + ... + 1517448.

It is an arithmetic number, because the mean of its divisors is an integer number (11813999772).

Almost surely, 2^47252979923 is an apocalyptic number.

47252979923 is a deficient number, since it is larger than the sum of its proper divisors (3019165).

47252979923 is a wasteful number, since it uses less digits than its factorization.

47252979923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019164.

The product of its digits is 17146080, while the sum is 59.

The spelling of 47252979923 in words is "forty-seven billion, two hundred fifty-two million, nine hundred seventy-nine thousand, nine hundred twenty-three".