962780940581 has 2 divisors, whose sum is σ = 962780940582. Its totient is φ = 962780940580.

The previous prime is 962780940551. The next prime is 962780940601. The reversal of 962780940581 is 185049087269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 566971350625 + 395809589956 = 752975^2 + 629134^2 .

It is an emirp because it is prime and its reverse (185049087269) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-962780940581 is a prime.

It is a super-2 number, since 2×962780940581² (a number of 25 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 962780940581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (962780940551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481390470290 + 481390470291.

It is an arithmetic number, because the mean of its divisors is an integer number (481390470291).

Almost surely, 2^962780940581 is an apocalyptic number.

It is an amenable number.

962780940581 is a deficient number, since it is larger than the sum of its proper divisors (1).

962780940581 is an equidigital number, since it uses as much as digits as its factorization.

962780940581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 962780940581 in words is "nine hundred sixty-two billion, seven hundred eighty million, nine hundred forty thousand, five hundred eighty-one".