87235007061 has 4 divisors (see below), whose sum is σ = 116313342752. Its totient is φ = 58156671372.

The previous prime is 87235007053. The next prime is 87235007087. The reversal of 87235007061 is 16070053278.

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 not a de Polignac number, because 87235007061 - 2³ = 87235007053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87235007011) 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, 14539167841 + ... + 14539167846.

It is an arithmetic number, because the mean of its divisors is an integer number (29078335688).

Almost surely, 2^87235007061 is an apocalyptic number.

It is an amenable number.

87235007061 is a deficient number, since it is larger than the sum of its proper divisors (29078335691).

87235007061 is a wasteful number, since it uses less digits than its factorization.

87235007061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29078335690.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 87235007061 in words is "eighty-seven billion, two hundred thirty-five million, seven thousand, sixty-one".