87357436138005 has 32 divisors (see below), whose sum is σ = 152504362977408. Its totient is φ = 42347918054400.

The previous prime is 87357436137973. The next prime is 87357436138033. The reversal of 87357436138005 is 50083163475378.

It is a happy number.

It is not a de Polignac number, because 87357436138005 - 2⁵ = 87357436137973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87357436138005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44042304 + ... + 45983033.

It is an arithmetic number, because the mean of its divisors is an integer number (4765761343044).

Almost surely, 2^{87357436138005} is an apocalyptic number.

It is an amenable number.

87357436138005 is a deficient number, since it is larger than the sum of its proper divisors (65146926839403).

87357436138005 is a wasteful number, since it uses less digits than its factorization.

87357436138005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90031237.

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 87357436138005 in words is "eighty-seven trillion, three hundred fifty-seven billion, four hundred thirty-six million, one hundred thirty-eight thousand, five".