2501196861 has 4 divisors (see below), whose sum is σ = 3334929152. Its totient is φ = 1667464572.

The previous prime is 2501196851. The next prime is 2501196869. The reversal of 2501196861 is 1686911052.

2501196861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2501196861 - 2¹⁴ = 2501180477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501196869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416866141 + ... + 416866146.

It is an arithmetic number, because the mean of its divisors is an integer number (833732288).

Almost surely, 2^2501196861 is an apocalyptic number.

It is an amenable number.

2501196861 is a deficient number, since it is larger than the sum of its proper divisors (833732291).

2501196861 is an equidigital number, since it uses as much as digits as its factorization.

2501196861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833732290.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 2501196861 is about 50011.9671778665. The cubic root of 2501196861 is about 1357.4253591158.

The spelling of 2501196861 in words is "two billion, five hundred one million, one hundred ninety-six thousand, eight hundred sixty-one".