12455144740 has 48 divisors (see below), whose sum is σ = 26506771200. Its totient is φ = 4915302912.

The previous prime is 12455144731. The next prime is 12455144749. The reversal of 12455144740 is 4744155421.

It is an interprime number because it is at equal distance from previous prime (12455144731) and next prime (12455144749).

It is a self number, because there is not a number n which added to its sum of digits gives 12455144740.

It is not an unprimeable number, because it can be changed into a prime (12455144749) 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, 3200716 + ... + 3204604.

It is an arithmetic number, because the mean of its divisors is an integer number (552224400).

Almost surely, 2^12455144740 is an apocalyptic number.

12455144740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12455144740 is an abundant number, since it is smaller than the sum of its proper divisors (14051626460).

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

12455144740 is a wasteful number, since it uses less digits than its factorization.

12455144740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004 (or 6002 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 12455144740 in words is "twelve billion, four hundred fifty-five million, one hundred forty-four thousand, seven hundred forty".