87692740381 has 8 divisors (see below), whose sum is σ = 92853934200. Its totient is φ = 82531857408.

The previous prime is 87692740367. The next prime is 87692740397. The reversal of 87692740381 is 18304729678.

It can be written as a sum of positive squares in 4 ways, for example, as 5719896900 + 81972843481 = 75630^2 + 286309^2 .

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 87692740381 - 2²⁵ = 87659185949 is a prime.

It is a super-2 number, since 2×87692740381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87692740351) 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, 763155 + ... + 870511.

It is an arithmetic number, because the mean of its divisors is an integer number (11606741775).

Almost surely, 2^87692740381 is an apocalyptic number.

It is an amenable number.

87692740381 is a deficient number, since it is larger than the sum of its proper divisors (5161193819).

87692740381 is a wasteful number, since it uses less digits than its factorization.

87692740381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155423.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 87692740381 in words is "eighty-seven billion, six hundred ninety-two million, seven hundred forty thousand, three hundred eighty-one".