4025512336861 has 4 divisors (see below), whose sum is σ = 4025708312832. Its totient is φ = 4025316360892.

The previous prime is 4025512336843. The next prime is 4025512336991. The reversal of 4025512336861 is 1686332155204.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4025512336861 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 (4025512366861) 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, 97957171 + ... + 97998256.

It is an arithmetic number, because the mean of its divisors is an integer number (1006427078208).

Almost surely, 2^{4025512336861} is an apocalyptic number.

It is an amenable number.

4025512336861 is a deficient number, since it is larger than the sum of its proper divisors (195975971).

4025512336861 is a wasteful number, since it uses less digits than its factorization.

4025512336861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195975970.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 4025512336861 in words is "four trillion, twenty-five billion, five hundred twelve million, three hundred thirty-six thousand, eight hundred sixty-one".