61948669474 has 8 divisors (see below), whose sum is σ = 93967083180. Its totient is φ = 30626308416.

The previous prime is 61948669457. The next prime is 61948669483. The reversal of 61948669474 is 47496684916.

It can be written as a sum of positive squares in 2 ways, for example, as 61823341449 + 125328025 = 248643^2 + 11195^2 .

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

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, 174012939 + ... + 174013294.

Almost surely, 2^61948669474 is an apocalyptic number.

61948669474 is a deficient number, since it is larger than the sum of its proper divisors (32018413706).

61948669474 is a wasteful number, since it uses less digits than its factorization.

61948669474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348026324.

The product of its digits is 62705664, while the sum is 64.

The spelling of 61948669474 in words is "sixty-one billion, nine hundred forty-eight million, six hundred sixty-nine thousand, four hundred seventy-four".