87290570273 has 4 divisors (see below), whose sum is σ = 87826095408. Its totient is φ = 86755045140.

The previous prime is 87290570207. The next prime is 87290570287. The reversal of 87290570273 is 37207509278.

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 87290570273 - 2¹⁶ = 87290504737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87290570173) 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, 267762323 + ... + 267762648.

It is an arithmetic number, because the mean of its divisors is an integer number (21956523852).

Almost surely, 2^87290570273 is an apocalyptic number.

It is an amenable number.

87290570273 is a deficient number, since it is larger than the sum of its proper divisors (535525135).

87290570273 is a wasteful number, since it uses less digits than its factorization.

87290570273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535525134.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 87290570273 in words is "eighty-seven billion, two hundred ninety million, five hundred seventy thousand, two hundred seventy-three".