1264469283840 has 704 divisors, whose sum is σ = 4753688163840. Its totient is φ = 280850595840.

The previous prime is 1264469283839. The next prime is 1264469283877. The reversal of 1264469283840 is 483829644621.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1644302976 + ... + 1644303744.

It is an arithmetic number, because the mean of its divisors is an integer number (6752397960).

Almost surely, 2^{1264469283840} is an apocalyptic number.

1264469283840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264469283840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376844081920).

1264469283840 is an abundant number, since it is smaller than the sum of its proper divisors (3489218880000).

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

1264469283840 is a wasteful number, since it uses less digits than its factorization.

1264469283840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 1264469283840 in words is "one trillion, two hundred sixty-four billion, four hundred sixty-nine million, two hundred eighty-three thousand, eight hundred forty".