61452115073 has 2 divisors, whose sum is σ = 61452115074. Its totient is φ = 61452115072.

The previous prime is 61452115069. The next prime is 61452115177. The reversal of 61452115073 is 37051125416.

It is a happy number.

61452115073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61012458049 + 439657024 = 247007^2 + 20968^2 .

It is a cyclic number.

It is not a de Polignac number, because 61452115073 - 2² = 61452115069 is a prime.

It is not a weakly prime, because it can be changed into another prime (61452115003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726057536 + 30726057537.

It is an arithmetic number, because the mean of its divisors is an integer number (30726057537).

Almost surely, 2^61452115073 is an apocalyptic number.

It is an amenable number.

61452115073 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452115073 is an equidigital number, since it uses as much as digits as its factorization.

61452115073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 61452115073 in words is "sixty-one billion, four hundred fifty-two million, one hundred fifteen thousand, seventy-three".