47402079638 has 8 divisors (see below), whose sum is σ = 71116558632. Its totient is φ = 23696560096.

The previous prime is 47402079629. The next prime is 47402079667. The reversal of 47402079638 is 83697020474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×47402079638² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2226620 + ... + 2247807.

It is an arithmetic number, because the mean of its divisors is an integer number (8889569829).

Almost surely, 2^47402079638 is an apocalyptic number.

47402079638 is a deficient number, since it is larger than the sum of its proper divisors (23714478994).

47402079638 is a wasteful number, since it uses less digits than its factorization.

47402079638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479726.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 47402079638 in words is "forty-seven billion, four hundred two million, seventy-nine thousand, six hundred thirty-eight".