61481873347478 has 8 divisors (see below), whose sum is σ = 93259021370040. Its totient is φ = 30395532890800.

The previous prime is 61481873347351. The next prime is 61481873347523. The reversal of 61481873347478 is 87474337818416.

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, 172701891248 + ... + 172701891603.

It is an arithmetic number, because the mean of its divisors is an integer number (11657377671255).

Almost surely, 2^{61481873347478} is an apocalyptic number.

61481873347478 is a deficient number, since it is larger than the sum of its proper divisors (31777148022562).

61481873347478 is a wasteful number, since it uses less digits than its factorization.

61481873347478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345403782942.

The product of its digits is 606928896, while the sum is 71.

The spelling of 61481873347478 in words is "sixty-one trillion, four hundred eighty-one billion, eight hundred seventy-three million, three hundred forty-seven thousand, four hundred seventy-eight".