78882036160957 has 2 divisors, whose sum is σ = 78882036160958. Its totient is φ = 78882036160956.

The previous prime is 78882036160951. The next prime is 78882036160979. The reversal of 78882036160957 is 75906163028887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75075397135236 + 3806639025721 = 8664606^2 + 1951061^2 .

It is an emirp because it is prime and its reverse (75906163028887) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78882036160957 is a prime.

It is a super-2 number, since 2×78882036160957² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78882036160951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39441018080478 + 39441018080479.

It is an arithmetic number, because the mean of its divisors is an integer number (39441018080479).

Almost surely, 2^{78882036160957} is an apocalyptic number.

It is an amenable number.

78882036160957 is a deficient number, since it is larger than the sum of its proper divisors (1).

78882036160957 is an equidigital number, since it uses as much as digits as its factorization.

78882036160957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243855360, while the sum is 70.

The spelling of 78882036160957 in words is "seventy-eight trillion, eight hundred eighty-two billion, thirty-six million, one hundred sixty thousand, nine hundred fifty-seven".