61895994698 has 8 divisors (see below), whose sum is σ = 92845183392. Its totient is φ = 30947600236.

The previous prime is 61895994649. The next prime is 61895994703. The reversal of 61895994698 is 89649959816.

It is a happy number.

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

It is a super-2 number, since 2×61895994698² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67661 + ... + 358287.

It is an arithmetic number, because the mean of its divisors is an integer number (11605647924).

Almost surely, 2^61895994698 is an apocalyptic number.

61895994698 is a deficient number, since it is larger than the sum of its proper divisors (30949188694).

61895994698 is a wasteful number, since it uses less digits than its factorization.

61895994698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397116.

The product of its digits is 302330880, while the sum is 74.

The spelling of 61895994698 in words is "sixty-one billion, eight hundred ninety-five million, nine hundred ninety-four thousand, six hundred ninety-eight".