47811556157 has 8 divisors (see below), whose sum is σ = 48168334200. Its totient is φ = 47454891264.

The previous prime is 47811556147. The next prime is 47811556171. The reversal of 47811556157 is 75165511874.

It can be written as a sum of positive squares in 4 ways, for example, as 1575375481 + 46236180676 = 39691^2 + 215026^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47811556157 - 2³⁴ = 30631686973 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 (47811556147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943769 + ... + 993137.

It is an arithmetic number, because the mean of its divisors is an integer number (6021041775).

Almost surely, 2^47811556157 is an apocalyptic number.

It is an amenable number.

47811556157 is a deficient number, since it is larger than the sum of its proper divisors (356778043).

47811556157 is a wasteful number, since it uses less digits than its factorization.

47811556157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56575.

The product of its digits is 1176000, while the sum is 50.

The spelling of 47811556157 in words is "forty-seven billion, eight hundred eleven million, five hundred fifty-six thousand, one hundred fifty-seven".