61846818831878 has 16 divisors (see below), whose sum is σ = 94376432178000. Its totient is φ = 30388383963552.

The previous prime is 61846818831839. The next prime is 61846818831883. The reversal of 61846818831878 is 87813881864816.

It is a junction number, because it is equal to n+sod(n) for n = 61846818831799 and 61846818831808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93633893 + ... + 94292096.

It is an arithmetic number, because the mean of its divisors is an integer number (5898527011125).

Almost surely, 2^{61846818831878} is an apocalyptic number.

61846818831878 is a deficient number, since it is larger than the sum of its proper divisors (32529613346122).

61846818831878 is a wasteful number, since it uses less digits than its factorization.

61846818831878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187928839.

The product of its digits is 792723456, while the sum is 77.

The spelling of 61846818831878 in words is "sixty-one trillion, eight hundred forty-six billion, eight hundred eighteen million, eight hundred thirty-one thousand, eight hundred seventy-eight".