87239054793 has 8 divisors (see below), whose sum is σ = 126893170656. Its totient is φ = 52872154400.

The previous prime is 87239054737. The next prime is 87239054821. The reversal of 87239054793 is 39745093278.

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 87239054793 - 2⁹ = 87239054281 is a prime.

It is a super-2 number, since 2×87239054793² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87239054723) 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, 1321803828 + ... + 1321803893.

It is an arithmetic number, because the mean of its divisors is an integer number (15861646332).

Almost surely, 2^87239054793 is an apocalyptic number.

It is an amenable number.

87239054793 is a deficient number, since it is larger than the sum of its proper divisors (39654115863).

87239054793 is a wasteful number, since it uses less digits than its factorization.

87239054793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643607735.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 87239054793 in words is "eighty-seven billion, two hundred thirty-nine million, fifty-four thousand, seven hundred ninety-three".