71690336742 has 128 divisors (see below), whose sum is σ = 156875673600. Its totient is φ = 21768912000.

The previous prime is 71690336737. The next prime is 71690336747. The reversal of 71690336742 is 24763309617.

It is an interprime number because it is at equal distance from previous prime (71690336737) and next prime (71690336747).

It is a junction number, because it is equal to n+sod(n) for n = 71690336691 and 71690336700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71690336747) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70353109 + ... + 70354127.

It is an arithmetic number, because the mean of its divisors is an integer number (1225591200).

Almost surely, 2^71690336742 is an apocalyptic number.

71690336742 is an abundant number, since it is smaller than the sum of its proper divisors (85185336858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71690336742 is a wasteful number, since it uses less digits than its factorization.

71690336742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 71690336742 in words is "seventy-one billion, six hundred ninety million, three hundred thirty-six thousand, seven hundred forty-two".