4013205400850 has 24 divisors (see below), whose sum is σ = 7566816327060. Its totient is φ = 1583291992320.

The previous prime is 4013205400829. The next prime is 4013205400871. The reversal of 4013205400850 is 580045023104.

It is an interprime number because it is at equal distance from previous prime (4013205400829) and next prime (4013205400871).

It can be written as a sum of positive squares in 6 ways, for example, as 675850054201 + 3337355346649 = 822101^2 + 1826843^2 .

It is a super-2 number, since 2×4013205400850² (a number of 26 digits) contains 22 as substring.

It is a Curzon 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, 549750515 + ... + 549757814.

Almost surely, 2^{4013205400850} is an apocalyptic number.

4013205400850 is a deficient number, since it is larger than the sum of its proper divisors (3553610926210).

4013205400850 is a wasteful number, since it uses less digits than its factorization.

4013205400850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099508414 (or 1099508409 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 4013205400850 in words is "four trillion, thirteen billion, two hundred five million, four hundred thousand, eight hundred fifty".