61381934974 has 8 divisors (see below), whose sum is σ = 92075425488. Its totient is φ = 30690126480.

The previous prime is 61381934951. The next prime is 61381934987. The reversal of 61381934974 is 47943918316.

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, 324927 + ... + 477850.

It is an arithmetic number, because the mean of its divisors is an integer number (11509428186).

Almost surely, 2^61381934974 is an apocalyptic number.

61381934974 is a deficient number, since it is larger than the sum of its proper divisors (30693490514).

61381934974 is a wasteful number, since it uses less digits than its factorization.

61381934974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841010.

The product of its digits is 3919104, while the sum is 55.

The spelling of 61381934974 in words is "sixty-one billion, three hundred eighty-one million, nine hundred thirty-four thousand, nine hundred seventy-four".