87440768349 has 16 divisors (see below), whose sum is σ = 128188047360. Its totient is φ = 52577123760.

The previous prime is 87440768329. The next prime is 87440768369. The reversal of 87440768349 is 94386704478.

It is an interprime number because it is at equal distance from previous prime (87440768329) and next prime (87440768369).

It is not a de Polignac number, because 87440768349 - 2⁹ = 87440767837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87440768292 and 87440768301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87440768329) 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, 10427779 + ... + 10436160.

It is an arithmetic number, because the mean of its divisors is an integer number (8011752960).

Almost surely, 2^87440768349 is an apocalyptic number.

It is an amenable number.

87440768349 is a deficient number, since it is larger than the sum of its proper divisors (40747279011).

87440768349 is a wasteful number, since it uses less digits than its factorization.

87440768349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20864080.

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 87440768349 in words is "eighty-seven billion, four hundred forty million, seven hundred sixty-eight thousand, three hundred forty-nine".