1399533734412 has 144 divisors (see below), whose sum is σ = 4099875421824. Its totient is φ = 413757072000.

The previous prime is 1399533734411. The next prime is 1399533734429. The reversal of 1399533734412 is 2144373359931.

It is a happy number.

1399533734412 is a `hidden beast` number, since 1 + 3 + 99 + 533 + 7 + 3 + 4 + 4 + 12 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1399533734411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1157914 + ... + 2034657.

It is an arithmetic number, because the mean of its divisors is an integer number (28471357096).

Almost surely, 2^{1399533734412} is an apocalyptic number.

1399533734412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1399533734412 is an abundant number, since it is smaller than the sum of its proper divisors (2700341687412).

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

1399533734412 is a wasteful number, since it uses less digits than its factorization.

1399533734412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192642 (or 3192628 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 1399533734412 in words is "one trillion, three hundred ninety-nine billion, five hundred thirty-three million, seven hundred thirty-four thousand, four hundred twelve".