61973247042278 has 32 divisors (see below), whose sum is σ = 115635807735840. Its totient is φ = 24473186818560.

The previous prime is 61973247042181. The next prime is 61973247042293. The reversal of 61973247042278 is 87224074237916.

It is a self number, because there is not a number n which added to its sum of digits gives 61973247042278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6373220873 + ... + 6373230596.

It is an arithmetic number, because the mean of its divisors is an integer number (3613618991745).

Almost surely, 2^{61973247042278} is an apocalyptic number.

61973247042278 is a deficient number, since it is larger than the sum of its proper divisors (53662560693562).

61973247042278 is a wasteful number, since it uses less digits than its factorization.

61973247042278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746451512.

The product of its (nonzero) digits is 56899584, while the sum is 62.

The spelling of 61973247042278 in words is "sixty-one trillion, nine hundred seventy-three billion, two hundred forty-seven million, forty-two thousand, two hundred seventy-eight".