2615019997 has 2 divisors, whose sum is σ = 2615019998. Its totient is φ = 2615019996.

The previous prime is 2615019949. The next prime is 2615020003. The reversal of 2615019997 is 7999105162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1892163001 + 722856996 = 43499^2 + 26886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2615019997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2615019997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2615019097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307509998 + 1307509999.

It is an arithmetic number, because the mean of its divisors is an integer number (1307509999).

Almost surely, 2^2615019997 is an apocalyptic number.

It is an amenable number.

2615019997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615019997 is an equidigital number, since it uses as much as digits as its factorization.

2615019997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 49.

The square root of 2615019997 is about 51137.2662253273. The cubic root of 2615019997 is about 1377.7116729887.

The spelling of 2615019997 in words is "two billion, six hundred fifteen million, nineteen thousand, nine hundred ninety-seven".