87061134178635 has 8 divisors (see below), whose sum is σ = 139297814685840. Its totient is φ = 46432604895264.

The previous prime is 87061134178631. The next prime is 87061134178661. The reversal of 87061134178635 is 53687143116078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87061134178635 - 2² = 87061134178631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87061134178631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902037805940 + ... + 2902037805969.

It is an arithmetic number, because the mean of its divisors is an integer number (17412226835730).

Almost surely, 2^{87061134178635} is an apocalyptic number.

87061134178635 is a deficient number, since it is larger than the sum of its proper divisors (52236680507205).

87061134178635 is a wasteful number, since it uses less digits than its factorization.

87061134178635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804075611917.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 87061134178635 in words is "eighty-seven trillion, sixty-one billion, one hundred thirty-four million, one hundred seventy-eight thousand, six hundred thirty-five".