71838901451 has 2 divisors, whose sum is σ = 71838901452. Its totient is φ = 71838901450.

The previous prime is 71838901429. The next prime is 71838901501. The reversal of 71838901451 is 15410983817.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71838901451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71838901396 and 71838901405.

It is not a weakly prime, because it can be changed into another prime (71838904451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35919450725 + 35919450726.

It is an arithmetic number, because the mean of its divisors is an integer number (35919450726).

Almost surely, 2^71838901451 is an apocalyptic number.

71838901451 is a deficient number, since it is larger than the sum of its proper divisors (1).

71838901451 is an equidigital number, since it uses as much as digits as its factorization.

71838901451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 71838901451 in words is "seventy-one billion, eight hundred thirty-eight million, nine hundred one thousand, four hundred fifty-one".