47242681477 has 4 divisors (see below), whose sum is σ = 48766638976. Its totient is φ = 45718723980.

The previous prime is 47242681429. The next prime is 47242681489. The reversal of 47242681477 is 77418624274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47242681477 - 2¹⁹ = 47242157189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47249681477) 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, 761978703 + ... + 761978764.

It is an arithmetic number, because the mean of its divisors is an integer number (12191659744).

Almost surely, 2^47242681477 is an apocalyptic number.

It is an amenable number.

47242681477 is a deficient number, since it is larger than the sum of its proper divisors (1523957499).

47242681477 is a wasteful number, since it uses less digits than its factorization.

47242681477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523957498.

The product of its digits is 4214784, while the sum is 52.

The spelling of 47242681477 in words is "forty-seven billion, two hundred forty-two million, six hundred eighty-one thousand, four hundred seventy-seven".