2145613421907 has 24 divisors (see below), whose sum is σ = 3109731344720. Its totient is φ = 1425558528000.

The previous prime is 2145613421879. The next prime is 2145613421969. The reversal of 2145613421907 is 7091243165412.

2145613421907 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 613 + 4 + 21 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 2145613421907 - 2¹⁶ = 2145613356371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145613421507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22301907 + ... + 22397907.

Almost surely, 2^{2145613421907} is an apocalyptic number.

2145613421907 is a deficient number, since it is larger than the sum of its proper divisors (964117922813).

2145613421907 is a wasteful number, since it uses less digits than its factorization.

2145613421907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104403 (or 104400 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 2145613421907 in words is "two trillion, one hundred forty-five billion, six hundred thirteen million, four hundred twenty-one thousand, nine hundred seven".