47857801439397 has 16 divisors (see below), whose sum is σ = 65061449814528. Its totient is φ = 31280548827840.

The previous prime is 47857801439363. The next prime is 47857801439411. The reversal of 47857801439397 is 79393410875874.

It is not a de Polignac number, because 47857801439397 - 2⁸ = 47857801439141 is a prime.

It is a super-2 number, since 2×47857801439397² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857801439297) 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 15 ways as a sum of consecutive naturals, for example, 108756693 + ... + 109195850.

It is an arithmetic number, because the mean of its divisors is an integer number (4066340613408).

Almost surely, 2^{47857801439397} is an apocalyptic number.

It is an amenable number.

47857801439397 is a deficient number, since it is larger than the sum of its proper divisors (17203648375131).

47857801439397 is a wasteful number, since it uses less digits than its factorization.

47857801439397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217953980.

The product of its (nonzero) digits is 1280240640, while the sum is 75.

The spelling of 47857801439397 in words is "forty-seven trillion, eight hundred fifty-seven billion, eight hundred one million, four hundred thirty-nine thousand, three hundred ninety-seven".