87719824651 has 8 divisors (see below), whose sum is σ = 89211513600. Its totient is φ = 86228299560.

The previous prime is 87719824613. The next prime is 87719824681. The reversal of 87719824651 is 15642891778.

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 87719824651 - 2¹⁵ = 87719791883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87719824601) 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, 1576930 + ... + 1631608.

It is an arithmetic number, because the mean of its divisors is an integer number (11151439200).

Almost surely, 2^87719824651 is an apocalyptic number.

87719824651 is a deficient number, since it is larger than the sum of its proper divisors (1491688949).

87719824651 is a wasteful number, since it uses less digits than its factorization.

87719824651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81929.

The product of its digits is 6773760, while the sum is 58.

The spelling of 87719824651 in words is "eighty-seven billion, seven hundred nineteen million, eight hundred twenty-four thousand, six hundred fifty-one".