71477005867 has 2 divisors, whose sum is σ = 71477005868. Its totient is φ = 71477005866.

The previous prime is 71477005837. The next prime is 71477005871. The reversal of 71477005867 is 76850077417.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71477005867 is a prime.

It is a super-2 number, since 2×71477005867² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71477005837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35738502933 + 35738502934.

It is an arithmetic number, because the mean of its divisors is an integer number (35738502934).

Almost surely, 2^71477005867 is an apocalyptic number.

71477005867 is a deficient number, since it is larger than the sum of its proper divisors (1).

71477005867 is an equidigital number, since it uses as much as digits as its factorization.

71477005867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304960, while the sum is 52.

The spelling of 71477005867 in words is "seventy-one billion, four hundred seventy-seven million, five thousand, eight hundred sixty-seven".