87729063615 has 24 divisors (see below), whose sum is σ = 152175055968. Its totient is φ = 46754573760.

The previous prime is 87729063607. The next prime is 87729063649. The reversal of 87729063615 is 51636092778.

It is not a de Polignac number, because 87729063615 - 2³ = 87729063607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651556 + ... + 774585.

It is an arithmetic number, because the mean of its divisors is an integer number (6340627332).

Almost surely, 2^87729063615 is an apocalyptic number.

87729063615 is a deficient number, since it is larger than the sum of its proper divisors (64445992353).

87729063615 is a wasteful number, since it uses less digits than its factorization.

87729063615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427519 (or 1427516 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 87729063615 in words is "eighty-seven billion, seven hundred twenty-nine million, sixty-three thousand, six hundred fifteen".