61087136678 has 8 divisors (see below), whose sum is σ = 94107210672. Its totient is φ = 29718066456.

The previous prime is 61087136629. The next prime is 61087136687. The reversal of 61087136678 is 87663178016.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412750850 + ... + 412750997.

It is an arithmetic number, because the mean of its divisors is an integer number (11763401334).

Almost surely, 2^61087136678 is an apocalyptic number.

61087136678 is a deficient number, since it is larger than the sum of its proper divisors (33020073994).

61087136678 is a wasteful number, since it uses less digits than its factorization.

61087136678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825501886.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 61087136678 in words is "sixty-one billion, eighty-seven million, one hundred thirty-six thousand, six hundred seventy-eight".