87850705451 has 4 divisors (see below), whose sum is σ = 88237713192. Its totient is φ = 87463697712.

The previous prime is 87850705417. The next prime is 87850705487. The reversal of 87850705451 is 15450705878.

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 87850705451 - 2²⁶ = 87783596587 is a prime.

It is a super-2 number, since 2×87850705451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87850705451.

It is not an unprimeable number, because it can be changed into a prime (87850705651) 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, 193503530 + ... + 193503983.

It is an arithmetic number, because the mean of its divisors is an integer number (22059428298).

Almost surely, 2^87850705451 is an apocalyptic number.

87850705451 is a deficient number, since it is larger than the sum of its proper divisors (387007741).

87850705451 is a wasteful number, since it uses less digits than its factorization.

87850705451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387007740.

The product of its (nonzero) digits is 1568000, while the sum is 50.

The spelling of 87850705451 in words is "eighty-seven billion, eight hundred fifty million, seven hundred five thousand, four hundred fifty-one".