2106436507 has 16 divisors (see below), whose sum is σ = 2440861632. Its totient is φ = 1780531200.

The previous prime is 2106436471. The next prime is 2106436523. The reversal of 2106436507 is 7056346012.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2106436507 is a prime.

It is a super-2 number, since 2×2106436507² = 8874149516044722098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2106436207) 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, 175903 + ... + 187495.

It is an arithmetic number, because the mean of its divisors is an integer number (152553852).

Almost surely, 2^2106436507 is an apocalyptic number.

2106436507 is a deficient number, since it is larger than the sum of its proper divisors (334425125).

2106436507 is a wasteful number, since it uses less digits than its factorization.

2106436507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2106436507 is about 45895.9312684687. The cubic root of 2106436507 is about 1281.8861570537.

The spelling of 2106436507 in words is "two billion, one hundred six million, four hundred thirty-six thousand, five hundred seven".