87073372051 has 4 divisors (see below), whose sum is σ = 87124805152. Its totient is φ = 87021938952.

The previous prime is 87073371971. The next prime is 87073372091. The reversal of 87073372051 is 15027337078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87073372051 - 2⁷ = 87073371923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87073371989 and 87073372007.

It is not an unprimeable number, because it can be changed into a prime (87073372091) 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, 25714011 + ... + 25717396.

It is an arithmetic number, because the mean of its divisors is an integer number (21781201288).

Almost surely, 2^87073372051 is an apocalyptic number.

87073372051 is a deficient number, since it is larger than the sum of its proper divisors (51433101).

87073372051 is a wasteful number, since it uses less digits than its factorization.

87073372051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51433100.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 87073372051 in words is "eighty-seven billion, seventy-three million, three hundred seventy-two thousand, fifty-one".