1261385882383 has 8 divisors (see below), whose sum is σ = 1376161205760. Its totient is φ = 1146627872280.

The previous prime is 1261385882377. The next prime is 1261385882417. The reversal of 1261385882383 is 3832885831621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1261385882383 - 2⁹ = 1261385881871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261385882683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4175743 + ... + 4467616.

It is an arithmetic number, because the mean of its divisors is an integer number (172020150720).

Almost surely, 2^{1261385882383} is an apocalyptic number.

1261385882383 is a deficient number, since it is larger than the sum of its proper divisors (114775323377).

1261385882383 is a wasteful number, since it uses less digits than its factorization.

1261385882383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656637.

The product of its digits is 13271040, while the sum is 58.

The spelling of 1261385882383 in words is "one trillion, two hundred sixty-one billion, three hundred eighty-five million, eight hundred eighty-two thousand, three hundred eighty-three".