12702071634 has 96 divisors (see below), whose sum is σ = 30989381760. Its totient is φ = 3399162624.

The previous prime is 12702071633. The next prime is 12702071677. The reversal of 12702071634 is 43617020721.

It is a super-2 number, since 2×12702071634² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12702071595 and 12702071604.

It is not an unprimeable number, because it can be changed into a prime (12702071633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1344712 + ... + 1354124.

It is an arithmetic number, because the mean of its divisors is an integer number (322806060).

Almost surely, 2^12702071634 is an apocalyptic number.

12702071634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12702071634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15494690880).

12702071634 is an abundant number, since it is smaller than the sum of its proper divisors (18287310126).

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

12702071634 is a wasteful number, since it uses less digits than its factorization.

12702071634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552 (or 9533 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 12702071634 in words is "twelve billion, seven hundred two million, seventy-one thousand, six hundred thirty-four".