78511190053 has 2 divisors, whose sum is σ = 78511190054. Its totient is φ = 78511190052.

The previous prime is 78511190033. The next prime is 78511190057. The reversal of 78511190053 is 35009111587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43214925924 + 35296264129 = 207882^2 + 187873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78511190053 is a prime.

It is a super-2 number, since 2×78511190053² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78511189988 and 78511190015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78511190057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39255595026 + 39255595027.

It is an arithmetic number, because the mean of its divisors is an integer number (39255595027).

Almost surely, 2^78511190053 is an apocalyptic number.

It is an amenable number.

78511190053 is a deficient number, since it is larger than the sum of its proper divisors (1).

78511190053 is an equidigital number, since it uses as much as digits as its factorization.

78511190053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 78511190053 in words is "seventy-eight billion, five hundred eleven million, one hundred ninety thousand, fifty-three".