61701144492 has 48 divisors (see below), whose sum is σ = 157585629152. Its totient is φ = 18673735680.

The previous prime is 61701144487. The next prime is 61701144497. The reversal of 61701144492 is 29444110716.

It is an interprime number because it is at equal distance from previous prime (61701144487) and next prime (61701144497).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 61701144492.

It is not an unprimeable number, because it can be changed into a prime (61701144497) by changing a digit.

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, 3232453 + ... + 3251484.

Almost surely, 2^61701144492 is an apocalyptic number.

It is an amenable number.

61701144492 is an abundant number, since it is smaller than the sum of its proper divisors (95884484660).

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

61701144492 is a wasteful number, since it uses less digits than its factorization.

61701144492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484018 (or 6484016 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 61701144492 in words is "sixty-one billion, seven hundred one million, one hundred forty-four thousand, four hundred ninety-two".