12261763340 has 24 divisors (see below), whose sum is σ = 25977581280. Its totient is φ = 4861299968.

The previous prime is 12261763337. The next prime is 12261763379. The reversal of 12261763340 is 4336716221.

It is a self number, because there is not a number n which added to its sum of digits gives 12261763340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710520 + ... + 2715039.

It is an arithmetic number, because the mean of its divisors is an integer number (1082399220).

Almost surely, 2^12261763340 is an apocalyptic number.

12261763340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12261763340 is an abundant number, since it is smaller than the sum of its proper divisors (13715817940).

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

12261763340 is a wasteful number, since it uses less digits than its factorization.

12261763340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425681 (or 5425679 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 12261763340 in words is "twelve billion, two hundred sixty-one million, seven hundred sixty-three thousand, three hundred forty".