1405487828752 has 20 divisors (see below), whose sum is σ = 3112151621056. Its totient is φ = 602351926560.

The previous prime is 1405487828749. The next prime is 1405487828861. The reversal of 1405487828752 is 2578287845041.

It is a super-2 number, since 2×1405487828752² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6274499124 + ... + 6274499347.

Almost surely, 2^{1405487828752} is an apocalyptic number.

It is an amenable number.

1405487828752 is an abundant number, since it is smaller than the sum of its proper divisors (1706663792304).

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

1405487828752 is a wasteful number, since it uses less digits than its factorization.

1405487828752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12548998486 (or 12548998480 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 61.

The spelling of 1405487828752 in words is "one trillion, four hundred five billion, four hundred eighty-seven million, eight hundred twenty-eight thousand, seven hundred fifty-two".