1404743660864 has 56 divisors (see below), whose sum is σ = 2828557996416. Its totient is φ = 692048448000.

The previous prime is 1404743660863. The next prime is 1404743660927. The reversal of 1404743660864 is 4680663474041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404743660863) 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, 7270469 + ... + 7461179.

Almost surely, 2^{1404743660864} 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 1404743660864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414278998208).

1404743660864 is an abundant number, since it is smaller than the sum of its proper divisors (1423814335552).

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

1404743660864 is a wasteful number, since it uses less digits than its factorization.

1404743660864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192415 (or 192405 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 1404743660864 in words is "one trillion, four hundred four billion, seven hundred forty-three million, six hundred sixty thousand, eight hundred sixty-four".