87858397253 has 8 divisors (see below), whose sum is σ = 96001886496. Its totient is φ = 79740968400.

The previous prime is 87858397213. The next prime is 87858397259. The reversal of 87858397253 is 35279385878.

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 87858397253 - 2²² = 87854202949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87858397253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87858397259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508043 + ... + 6521528.

It is an arithmetic number, because the mean of its divisors is an integer number (12000235812).

Almost surely, 2^87858397253 is an apocalyptic number.

It is an amenable number.

87858397253 is a deficient number, since it is larger than the sum of its proper divisors (8143489243).

87858397253 is a wasteful number, since it uses less digits than its factorization.

87858397253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13030195.

The product of its digits is 101606400, while the sum is 65.

The spelling of 87858397253 in words is "eighty-seven billion, eight hundred fifty-eight million, three hundred ninety-seven thousand, two hundred fifty-three".