1438061677472 has 24 divisors (see below), whose sum is σ = 3235638774816. Its totient is φ = 616312147392.

The previous prime is 1438061677447. The next prime is 1438061677513. The reversal of 1438061677472 is 2747761608341.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 3209958878 + ... + 3209959325.

It is an arithmetic number, because the mean of its divisors is an integer number (134818282284).

Almost surely, 2^{1438061677472} is an apocalyptic number.

It is an amenable number.

1438061677472 is an abundant number, since it is smaller than the sum of its proper divisors (1797577097344).

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

1438061677472 is an equidigital number, since it uses as much as digits as its factorization.

1438061677472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419918220 (or 6419918212 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 56.

The spelling of 1438061677472 in words is "one trillion, four hundred thirty-eight billion, sixty-one million, six hundred seventy-seven thousand, four hundred seventy-two".