61005941724 has 96 divisors (see below), whose sum is σ = 180848152576. Its totient is φ = 15570455040.

The previous prime is 61005941723. The next prime is 61005941761. The reversal of 61005941724 is 42714950016.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005941723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 867217 + ... + 934920.

Almost surely, 2^61005941724 is an apocalyptic number.

It is an amenable number.

61005941724 is an abundant number, since it is smaller than the sum of its proper divisors (119842210852).

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

61005941724 is a wasteful number, since it uses less digits than its factorization.

61005941724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802195 (or 1802193 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 61005941724 in words is "sixty-one billion, five million, nine hundred forty-one thousand, seven hundred twenty-four".