1207745338644 has 36 divisors (see below), whose sum is σ = 3287751200916. Its totient is φ = 371613950208.

The previous prime is 1207745338619. The next prime is 1207745338747. The reversal of 1207745338644 is 4468335477021.

1207745338644 is a `hidden beast` number, since 1 + 2 + 0 + 77 + 453 + 3 + 86 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 328535312400 + 879210026244 = 573180^2 + 937662^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1290325749 + ... + 1290326684.

Almost surely, 2^{1207745338644} is an apocalyptic number.

It is an amenable number.

1207745338644 is an abundant number, since it is smaller than the sum of its proper divisors (2080005862272).

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

1207745338644 is a wasteful number, since it uses less digits than its factorization.

1207745338644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580652456 (or 2580652451 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 1207745338644 in words is "one trillion, two hundred seven billion, seven hundred forty-five million, three hundred thirty-eight thousand, six hundred forty-four".