61723514442 has 16 divisors (see below), whose sum is σ = 123496378560. Its totient is φ = 20566279872.

The previous prime is 61723514401. The next prime is 61723514459. The reversal of 61723514442 is 24441532716.

It is a self number, because there is not a number n which added to its sum of digits gives 61723514442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039967 + ... + 2070002.

It is an arithmetic number, because the mean of its divisors is an integer number (7718523660).

Almost surely, 2^61723514442 is an apocalyptic number.

61723514442 is an abundant number, since it is smaller than the sum of its proper divisors (61772864118).

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

61723514442 is a wasteful number, since it uses less digits than its factorization.

61723514442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112477.

The product of its digits is 161280, while the sum is 39.

The spelling of 61723514442 in words is "sixty-one billion, seven hundred twenty-three million, five hundred fourteen thousand, four hundred forty-two".