5891663957 has 4 divisors (see below), whose sum is σ = 6050898156. Its totient is φ = 5732429760.

The previous prime is 5891663941. The next prime is 5891663971. The reversal of 5891663957 is 7593661985.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5519598436 + 372065521 = 74294^2 + 19289^2 .

It is a cyclic number.

It is not a de Polignac number, because 5891663957 - 2⁴ = 5891663941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5891663896 and 5891663905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5891663977) 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, 79617044 + ... + 79617117.

It is an arithmetic number, because the mean of its divisors is an integer number (1512724539).

Almost surely, 2^5891663957 is an apocalyptic number.

It is an amenable number.

5891663957 is a deficient number, since it is larger than the sum of its proper divisors (159234199).

5891663957 is a wasteful number, since it uses less digits than its factorization.

5891663957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159234198.

The product of its digits is 12247200, while the sum is 59.

The square root of 5891663957 is about 76757.1752802303. The cubic root of 5891663957 is about 1806.1174529445.

The spelling of 5891663957 in words is "five billion, eight hundred ninety-one million, six hundred sixty-three thousand, nine hundred fifty-seven".