47139391891554 has 16 divisors (see below), whose sum is σ = 94283639492448. Its totient is φ = 15712321345632.

The previous prime is 47139391891499. The next prime is 47139391891577. The reversal of 47139391891554 is 45519819393174.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202195012 + ... + 202428015.

It is an arithmetic number, because the mean of its divisors is an integer number (5892727468278).

Almost surely, 2^{47139391891554} is an apocalyptic number.

47139391891554 is an abundant number, since it is smaller than the sum of its proper divisors (47144247600894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47139391891554 is a wasteful number, since it uses less digits than its factorization.

47139391891554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404642449.

The product of its digits is 146966400, while the sum is 69.

The spelling of 47139391891554 in words is "forty-seven trillion, one hundred thirty-nine billion, three hundred ninety-one million, eight hundred ninety-one thousand, five hundred fifty-four".