61453197758 has 8 divisors (see below), whose sum is σ = 95153338560. Its totient is φ = 29735418240.

The previous prime is 61453197671. The next prime is 61453197821. The reversal of 61453197758 is 85779135416.

It is a happy number.

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

It is a Curzon number.

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, 495590243 + ... + 495590366.

It is an arithmetic number, because the mean of its divisors is an integer number (11894167320).

Almost surely, 2^61453197758 is an apocalyptic number.

61453197758 is a deficient number, since it is larger than the sum of its proper divisors (33700140802).

61453197758 is a wasteful number, since it uses less digits than its factorization.

61453197758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991180642.

The product of its digits is 6350400, while the sum is 56.

The spelling of 61453197758 in words is "sixty-one billion, four hundred fifty-three million, one hundred ninety-seven thousand, seven hundred fifty-eight".