87499388451 has 16 divisors (see below), whose sum is σ = 122369066496. Its totient is φ = 55507600896.

The previous prime is 87499388387. The next prime is 87499388531. The reversal of 87499388451 is 15488399478.

It is not a de Polignac number, because 87499388451 - 2⁶ = 87499388387 is a prime.

It is a super-2 number, since 2×87499388451² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87499388651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3271935 + ... + 3298568.

It is an arithmetic number, because the mean of its divisors is an integer number (7648066656).

Almost surely, 2^87499388451 is an apocalyptic number.

87499388451 is a deficient number, since it is larger than the sum of its proper divisors (34869678045).

87499388451 is a wasteful number, since it uses less digits than its factorization.

87499388451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570722.

The product of its digits is 69672960, while the sum is 66.

The spelling of 87499388451 in words is "eighty-seven billion, four hundred ninety-nine million, three hundred eighty-eight thousand, four hundred fifty-one".