87546621365 has 16 divisors (see below), whose sum is σ = 120073242240. Its totient is φ = 60027316800.

The previous prime is 87546621359. The next prime is 87546621373. The reversal of 87546621365 is 56312664578.

It is a happy number.

It is not a de Polignac number, because 87546621365 - 2¹⁸ = 87546359221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396566 + ... + 576504.

It is an arithmetic number, because the mean of its divisors is an integer number (7504577640).

Almost surely, 2^87546621365 is an apocalyptic number.

It is an amenable number.

87546621365 is a deficient number, since it is larger than the sum of its proper divisors (32526620875).

87546621365 is a wasteful number, since it uses less digits than its factorization.

87546621365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193852.

The product of its digits is 7257600, while the sum is 53.

The spelling of 87546621365 in words is "eighty-seven billion, five hundred forty-six million, six hundred twenty-one thousand, three hundred sixty-five".