61453477746 has 24 divisors (see below), whose sum is σ = 134645263740. Its totient is φ = 20254329216.

The previous prime is 61453477739. The next prime is 61453477783. The reversal of 61453477746 is 64777435416.

It is a happy number.

61453477746 is a `hidden beast` number, since 61 + 4 + 534 + 7 + 7 + 7 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61236946521 + 216531225 = 247461^2 + 14715^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61453477692 and 61453477701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19178635 + ... + 19181838.

Almost surely, 2^61453477746 is an apocalyptic number.

61453477746 is an abundant number, since it is smaller than the sum of its proper divisors (73191785994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61453477746 is a wasteful number, since it uses less digits than its factorization.

61453477746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38360570 (or 38360567 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 61453477746 in words is "sixty-one billion, four hundred fifty-three million, four hundred seventy-seven thousand, seven hundred forty-six".