740087890709 has 2 divisors, whose sum is σ = 740087890710. Its totient is φ = 740087890708.

The previous prime is 740087890687. The next prime is 740087890733. The reversal of 740087890709 is 907098780047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611437983025 + 128649907684 = 781945^2 + 358678^2 .

It is a cyclic number.

It is not a de Polignac number, because 740087890709 - 2²⁴ = 740071113493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740087890609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370043945354 + 370043945355.

It is an arithmetic number, because the mean of its divisors is an integer number (370043945355).

Almost surely, 2^740087890709 is an apocalyptic number.

It is an amenable number.

740087890709 is a deficient number, since it is larger than the sum of its proper divisors (1).

740087890709 is an equidigital number, since it uses as much as digits as its factorization.

740087890709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 740087890709 in words is "seven hundred forty billion, eighty-seven million, eight hundred ninety thousand, seven hundred nine".