1264381747770 has 16 divisors (see below), whose sum is σ = 3034516194720. Its totient is φ = 337168466064.

The previous prime is 1264381747703. The next prime is 1264381747771. The reversal of 1264381747770 is 777471834621.

It is a super-2 number, since 2×1264381747770² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1264381747770.

It is not an unprimeable number, because it can be changed into a prime (1264381747771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21073029100 + ... + 21073029159.

It is an arithmetic number, because the mean of its divisors is an integer number (189657262170).

Almost surely, 2^{1264381747770} is an apocalyptic number.

1264381747770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264381747770 is an abundant number, since it is smaller than the sum of its proper divisors (1770134446950).

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

1264381747770 is a wasteful number, since it uses less digits than its factorization.

1264381747770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42146058269.

The product of its (nonzero) digits is 11063808, while the sum is 57.

The spelling of 1264381747770 in words is "one trillion, two hundred sixty-four billion, three hundred eighty-one million, seven hundred forty-seven thousand, seven hundred seventy".