87215356720154 has 32 divisors (see below), whose sum is σ = 142998961158144. Its totient is φ = 39653729320320.

The previous prime is 87215356720127. The next prime is 87215356720183. The reversal of 87215356720154 is 45102765351278.

It is a super-2 number, since 2×87215356720154² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87215356720154.

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, 84743339 + ... + 85766334.

It is an arithmetic number, because the mean of its divisors is an integer number (4468717536192).

Almost surely, 2^{87215356720154} is an apocalyptic number.

87215356720154 is a deficient number, since it is larger than the sum of its proper divisors (55783604437990).

87215356720154 is a wasteful number, since it uses less digits than its factorization.

87215356720154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170509982.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 87215356720154 in words is "eighty-seven trillion, two hundred fifteen billion, three hundred fifty-six million, seven hundred twenty thousand, one hundred fifty-four".