87435222657 has 4 divisors (see below), whose sum is σ = 116580296880. Its totient is φ = 58290148436.

The previous prime is 87435222619. The next prime is 87435222661. The reversal of 87435222657 is 75622253478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87435222657 - 2⁷ = 87435222529 is a prime.

It is a super-2 number, since 2×87435222657² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87435222607) 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, 14572537107 + ... + 14572537112.

It is an arithmetic number, because the mean of its divisors is an integer number (29145074220).

Almost surely, 2^87435222657 is an apocalyptic number.

It is an amenable number.

87435222657 is a deficient number, since it is larger than the sum of its proper divisors (29145074223).

87435222657 is a wasteful number, since it uses less digits than its factorization.

87435222657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29145074222.

The product of its digits is 5644800, while the sum is 51.

The spelling of 87435222657 in words is "eighty-seven billion, four hundred thirty-five million, two hundred twenty-two thousand, six hundred fifty-seven".