87435269857 has 16 divisors (see below), whose sum is σ = 94397743440. Its totient is φ = 80506847232.

The previous prime is 87435269843. The next prime is 87435269861. The reversal of 87435269857 is 75896253478.

It can be written as a sum of positive squares in 8 ways, for example, as 226683136 + 87208586721 = 15056^2 + 295311^2 .

It is a cyclic number.

It is not a de Polignac number, because 87435269857 - 2³¹ = 85287786209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87435269807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11012193 + ... + 11020129.

It is an arithmetic number, because the mean of its divisors is an integer number (5899858965).

Almost surely, 2^87435269857 is an apocalyptic number.

It is an amenable number.

87435269857 is a deficient number, since it is larger than the sum of its proper divisors (6962473583).

87435269857 is a wasteful number, since it uses less digits than its factorization.

87435269857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972.

The product of its digits is 101606400, while the sum is 64.

The spelling of 87435269857 in words is "eighty-seven billion, four hundred thirty-five million, two hundred sixty-nine thousand, eight hundred fifty-seven".