3954802259949 has 4 divisors (see below), whose sum is σ = 5273069679936. Its totient is φ = 2636534839964.

The previous prime is 3954802259923. The next prime is 3954802259953. The reversal of 3954802259949 is 9499522084593.

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 not a de Polignac number, because 3954802259949 - 2⁸ = 3954802259693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954802259959) 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, 659133709989 + ... + 659133709994.

It is an arithmetic number, because the mean of its divisors is an integer number (1318267419984).

Almost surely, 2^{3954802259949} is an apocalyptic number.

It is an amenable number.

3954802259949 is a deficient number, since it is larger than the sum of its proper divisors (1318267419987).

3954802259949 is a wasteful number, since it uses less digits than its factorization.

3954802259949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318267419986.

The product of its (nonzero) digits is 251942400, while the sum is 69.

The spelling of 3954802259949 in words is "three trillion, nine hundred fifty-four billion, eight hundred two million, two hundred fifty-nine thousand, nine hundred forty-nine".