61752297619 has 2 divisors, whose sum is σ = 61752297620. Its totient is φ = 61752297618.

The previous prime is 61752297583. The next prime is 61752297671. The reversal of 61752297619 is 91679225716.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61752297619 - 2⁹ = 61752297107 is a prime.

It is a super-2 number, since 2×61752297619² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61752297619.

It is not a weakly prime, because it can be changed into another prime (61752297679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30876148809 + 30876148810.

It is an arithmetic number, because the mean of its divisors is an integer number (30876148810).

Almost surely, 2^61752297619 is an apocalyptic number.

61752297619 is a deficient number, since it is larger than the sum of its proper divisors (1).

61752297619 is an equidigital number, since it uses as much as digits as its factorization.

61752297619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 55.

The spelling of 61752297619 in words is "sixty-one billion, seven hundred fifty-two million, two hundred ninety-seven thousand, six hundred nineteen".