12574773640 has 128 divisors (see below), whose sum is σ = 33867590400. Its totient is φ = 4141163520.

The previous prime is 12574773619. The next prime is 12574773689. The reversal of 12574773640 is 4637747521.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282421 + ... + 323899.

It is an arithmetic number, because the mean of its divisors is an integer number (264590550).

Almost surely, 2^12574773640 is an apocalyptic number.

12574773640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12574773640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16933795200).

12574773640 is an abundant number, since it is smaller than the sum of its proper divisors (21292816760).

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

12574773640 is a wasteful number, since it uses less digits than its factorization.

12574773640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41567 (or 41563 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 12574773640 in words is "twelve billion, five hundred seventy-four million, seven hundred seventy-three thousand, six hundred forty".