61994645295 has 16 divisors (see below), whose sum is σ = 108208835712. Its totient is φ = 30058009760.

The previous prime is 61994645267. The next prime is 61994645309. The reversal of 61994645295 is 59254649916.

It is not a de Polignac number, because 61994645295 - 2⁶ = 61994645231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187862397 + ... + 187862726.

It is an arithmetic number, because the mean of its divisors is an integer number (6763052232).

Almost surely, 2^61994645295 is an apocalyptic number.

61994645295 is a deficient number, since it is larger than the sum of its proper divisors (46214190417).

61994645295 is a wasteful number, since it uses less digits than its factorization.

61994645295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375725142.

The product of its digits is 20995200, while the sum is 60.

The spelling of 61994645295 in words is "sixty-one billion, nine hundred ninety-four million, six hundred forty-five thousand, two hundred ninety-five".