61973407673746 has 4 divisors (see below), whose sum is σ = 92960111510622. Its totient is φ = 30986703836872.

The previous prime is 61973407673729. The next prime is 61973407673873. The reversal of 61973407673746 is 64737670437916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58117584533121 + 3855823140625 = 7623489^2 + 1963625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15493351918435 + ... + 15493351918438.

Almost surely, 2^{61973407673746} is an apocalyptic number.

61973407673746 is a deficient number, since it is larger than the sum of its proper divisors (30986703836876).

61973407673746 is a wasteful number, since it uses less digits than its factorization.

61973407673746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30986703836875.

The product of its (nonzero) digits is 672126336, while the sum is 70.

The spelling of 61973407673746 in words is "sixty-one trillion, nine hundred seventy-three billion, four hundred seven million, six hundred seventy-three thousand, seven hundred forty-six".