71421624946 has 32 divisors (see below), whose sum is σ = 125479968768. Its totient is φ = 29850765840.

The previous prime is 71421624941. The next prime is 71421624949. The reversal of 71421624946 is 64942612417.

It is a junction number, because it is equal to n+sod(n) for n = 71421624896 and 71421624905.

It is not an unprimeable number, because it can be changed into a prime (71421624941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294831 + ... + 479341.

It is an arithmetic number, because the mean of its divisors is an integer number (3921249024).

Almost surely, 2^71421624946 is an apocalyptic number.

71421624946 is a deficient number, since it is larger than the sum of its proper divisors (54058343822).

71421624946 is a wasteful number, since it uses less digits than its factorization.

71421624946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185206.

The product of its digits is 580608, while the sum is 46.

The spelling of 71421624946 in words is "seventy-one billion, four hundred twenty-one million, six hundred twenty-four thousand, nine hundred forty-six".