719379137957 has 2 divisors, whose sum is σ = 719379137958. Its totient is φ = 719379137956.

The previous prime is 719379137879. The next prime is 719379137969. The reversal of 719379137957 is 759731973917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598107343876 + 121271794081 = 773374^2 + 348241^2 .

It is a cyclic number.

It is not a de Polignac number, because 719379137957 - 2²⁴ = 719362360741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719379137987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359689568978 + 359689568979.

It is an arithmetic number, because the mean of its divisors is an integer number (359689568979).

Almost surely, 2^719379137957 is an apocalyptic number.

It is an amenable number.

719379137957 is a deficient number, since it is larger than the sum of its proper divisors (1).

719379137957 is an equidigital number, since it uses as much as digits as its factorization.

719379137957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78764805, while the sum is 68.

The spelling of 719379137957 in words is "seven hundred nineteen billion, three hundred seventy-nine million, one hundred thirty-seven thousand, nine hundred fifty-seven".