71219421675 has 36 divisors (see below), whose sum is σ = 127578744904. Its totient is φ = 37978675200.

The previous prime is 71219421661. The next prime is 71219421751. The reversal of 71219421675 is 57612491217.

71219421675 is a `hidden beast` number, since 7 + 1 + 219 + 421 + 6 + 7 + 5 = 666.

It is not a de Polignac number, because 71219421675 - 2¹¹ = 71219419627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71219421675.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2218539 + ... + 2250411.

Almost surely, 2^71219421675 is an apocalyptic number.

71219421675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71219421675 is a deficient number, since it is larger than the sum of its proper divisors (56359323229).

71219421675 is a wasteful number, since it uses less digits than its factorization.

71219421675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41820 (or 41812 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The spelling of 71219421675 in words is "seventy-one billion, two hundred nineteen million, four hundred twenty-one thousand, six hundred seventy-five".