7896890781207 has 32 divisors (see below), whose sum is σ = 12122406236160. Its totient is φ = 5075396362080.

The previous prime is 7896890781203. The next prime is 7896890781233. The reversal of 7896890781207 is 7021870986987.

It is not a de Polignac number, because 7896890781207 - 2² = 7896890781203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7896890781203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17716668 + ... + 18156929.

It is an arithmetic number, because the mean of its divisors is an integer number (378825194880).

Almost surely, 2^{7896890781207} is an apocalyptic number.

7896890781207 is a deficient number, since it is larger than the sum of its proper divisors (4225515454953).

7896890781207 is a wasteful number, since it uses less digits than its factorization.

7896890781207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35873900 (or 35873894 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 72.

The spelling of 7896890781207 in words is "seven trillion, eight hundred ninety-six billion, eight hundred ninety million, seven hundred eighty-one thousand, two hundred seven".