12702071478 has 32 divisors (see below), whose sum is σ = 25893590112. Its totient is φ = 4152512000.

The previous prime is 12702071449. The next prime is 12702071479. The reversal of 12702071478 is 87417020721.

It is a super-2 number, since 2×12702071478² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12702071479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018078 + ... + 1030478.

It is an arithmetic number, because the mean of its divisors is an integer number (809174691).

Almost surely, 2^12702071478 is an apocalyptic number.

12702071478 is an abundant number, since it is smaller than the sum of its proper divisors (13191518634).

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

12702071478 is a wasteful number, since it uses less digits than its factorization.

12702071478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680.

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 12702071478 in words is "twelve billion, seven hundred two million, seventy-one thousand, four hundred seventy-eight".