71262240783 has 16 divisors (see below), whose sum is σ = 97580090880. Its totient is φ = 46237570496.

The previous prime is 71262240779. The next prime is 71262240817. The reversal of 71262240783 is 38704226217.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 71262240783 - 2² = 71262240779 is a prime.

It is a super-2 number, since 2×71262240783² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71262240733) 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, 1386510 + ... + 1436987.

It is an arithmetic number, because the mean of its divisors is an integer number (6098755680).

Almost surely, 2^71262240783 is an apocalyptic number.

71262240783 is a deficient number, since it is larger than the sum of its proper divisors (26317850097).

71262240783 is a wasteful number, since it uses less digits than its factorization.

71262240783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823726.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 71262240783 in words is "seventy-one billion, two hundred sixty-two million, two hundred forty thousand, seven hundred eighty-three".