78126032951 has 2 divisors, whose sum is σ = 78126032952. Its totient is φ = 78126032950.

The previous prime is 78126032923. The next prime is 78126032969. The reversal of 78126032951 is 15923062187.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78126032951 is a prime.

It is a super-2 number, since 2×78126032951² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78126034951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39063016475 + 39063016476.

It is an arithmetic number, because the mean of its divisors is an integer number (39063016476).

Almost surely, 2^78126032951 is an apocalyptic number.

78126032951 is a deficient number, since it is larger than the sum of its proper divisors (1).

78126032951 is an equidigital number, since it uses as much as digits as its factorization.

78126032951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 78126032951 in words is "seventy-eight billion, one hundred twenty-six million, thirty-two thousand, nine hundred fifty-one".