761057457389 has 2 divisors, whose sum is σ = 761057457390. Its totient is φ = 761057457388.

The previous prime is 761057457383. The next prime is 761057457397. The reversal of 761057457389 is 983754750167.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 595855854889 + 165201602500 = 771917^2 + 406450^2 .

It is a cyclic number.

It is not a de Polignac number, because 761057457389 - 2²⁰ = 761056408813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761057457383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380528728694 + 380528728695.

It is an arithmetic number, because the mean of its divisors is an integer number (380528728695).

Almost surely, 2^761057457389 is an apocalyptic number.

It is an amenable number.

761057457389 is a deficient number, since it is larger than the sum of its proper divisors (1).

761057457389 is an equidigital number, since it uses as much as digits as its factorization.

761057457389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44452800, while the sum is 62.

The spelling of 761057457389 in words is "seven hundred sixty-one billion, fifty-seven million, four hundred fifty-seven thousand, three hundred eighty-nine".