1264284340390 has 16 divisors (see below), whose sum is σ = 2278921574160. Its totient is φ = 505000455840.

The previous prime is 1264284340381. The next prime is 1264284340439. The reversal of 1264284340390 is 930434824621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264284340390.

It is a congruent number.

It is an unprimeable number.

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, 89152596 + ... + 89166775.

It is an arithmetic number, because the mean of its divisors is an integer number (142432598385).

Almost surely, 2^{1264284340390} is an apocalyptic number.

1264284340390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264284340390 is a deficient number, since it is larger than the sum of its proper divisors (1014637233770).

1264284340390 is a wasteful number, since it uses less digits than its factorization.

1264284340390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178320087.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 1264284340390 in words is "one trillion, two hundred sixty-four billion, two hundred eighty-four million, three hundred forty thousand, three hundred ninety".