1200507910845 has 16 divisors (see below), whose sum is σ = 1924724711232. Its totient is φ = 638966867840.

The previous prime is 1200507910843. The next prime is 1200507910867. The reversal of 1200507910845 is 5480197050021.

It is not a de Polignac number, because 1200507910845 - 2¹ = 1200507910843 is a prime.

It is a super-2 number, since 2×1200507910845² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200507910797 and 1200507910806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200507910843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81493512 + ... + 81508241.

It is an arithmetic number, because the mean of its divisors is an integer number (120295294452).

Almost surely, 2^{1200507910845} is an apocalyptic number.

1200507910845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1200507910845 is a deficient number, since it is larger than the sum of its proper divisors (724216800387).

1200507910845 is a wasteful number, since it uses less digits than its factorization.

1200507910845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163002252.

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 1200507910845 in words is "one trillion, two hundred billion, five hundred seven million, nine hundred ten thousand, eight hundred forty-five".