1263484405504 has 72 divisors (see below), whose sum is σ = 2633384824560. Its totient is φ = 604257067008.

The previous prime is 1263484405493. The next prime is 1263484405507. The reversal of 1263484405504 is 4055044843621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263484405507) 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, 909 + ... + 1589644.

It is an arithmetic number, because the mean of its divisors is an integer number (36574789230).

Almost surely, 2^{1263484405504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263484405504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316692412280).

1263484405504 is an abundant number, since it is smaller than the sum of its proper divisors (1369900419056).

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

1263484405504 is a wasteful number, since it uses less digits than its factorization.

1263484405504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590705 (or 1590691 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 1263484405504 in words is "one trillion, two hundred sixty-three billion, four hundred eighty-four million, four hundred five thousand, five hundred four".