71970633451 has 2 divisors, whose sum is σ = 71970633452. Its totient is φ = 71970633450.

The previous prime is 71970633439. The next prime is 71970633457. The reversal of 71970633451 is 15433607917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71970633451 - 2⁵ = 71970633419 is a prime.

It is not a weakly prime, because it can be changed into another prime (71970633457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35985316725 + 35985316726.

It is an arithmetic number, because the mean of its divisors is an integer number (35985316726).

Almost surely, 2^71970633451 is an apocalyptic number.

71970633451 is a deficient number, since it is larger than the sum of its proper divisors (1).

71970633451 is an equidigital number, since it uses as much as digits as its factorization.

71970633451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 71970633451 in words is "seventy-one billion, nine hundred seventy million, six hundred thirty-three thousand, four hundred fifty-one".