1400133645828 has 18 divisors (see below), whose sum is σ = 3539226715934. Its totient is φ = 466711215264.

The previous prime is 1400133645821. The next prime is 1400133645829. The reversal of 1400133645828 is 8285463310041.

1400133645828 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 1 + 3 + 3 + 64 + 582 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1333082686464 + 67050959364 = 1154592^2 + 258942^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1400133645821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19446300601 + ... + 19446300672.

Almost surely, 2^{1400133645828} is an apocalyptic number.

1400133645828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1400133645828 is an abundant number, since it is smaller than the sum of its proper divisors (2139093070106).

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

1400133645828 is a wasteful number, since it uses less digits than its factorization.

1400133645828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38892601283 (or 38892601278 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

Adding to 1400133645828 its reverse (8285463310041), we get a palindrome (9685596955869).

The spelling of 1400133645828 in words is "one trillion, four hundred billion, one hundred thirty-three million, six hundred forty-five thousand, eight hundred twenty-eight".