61634842846478 has 8 divisors (see below), whose sum is σ = 100857015567000. Its totient is φ = 28015837657480.

The previous prime is 61634842846463. The next prime is 61634842846483. The reversal of 61634842846478 is 87464824843616.

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, 1400791882853 + ... + 1400791882896.

It is an arithmetic number, because the mean of its divisors is an integer number (12607126945875).

Almost surely, 2^{61634842846478} is an apocalyptic number.

61634842846478 is a deficient number, since it is larger than the sum of its proper divisors (39222172720522).

61634842846478 is a wasteful number, since it uses less digits than its factorization.

61634842846478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801583765762.

The product of its digits is 1189085184, while the sum is 71.

The spelling of 61634842846478 in words is "sixty-one trillion, six hundred thirty-four billion, eight hundred forty-two million, eight hundred forty-six thousand, four hundred seventy-eight".