3955705157049 has 4 divisors (see below), whose sum is σ = 5274273542736. Its totient is φ = 2637136771364.

The previous prime is 3955705157039. The next prime is 3955705157059. The reversal of 3955705157049 is 9407515075593.

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 an interprime number because it is at equal distance from previous prime (3955705157039) and next prime (3955705157059).

It is a cyclic number.

It is not a de Polignac number, because 3955705157049 - 2²⁹ = 3955168286137 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3955705156983 and 3955705157001.

It is not an unprimeable number, because it can be changed into a prime (3955705157039) 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, 659284192839 + ... + 659284192844.

It is an arithmetic number, because the mean of its divisors is an integer number (1318568385684).

Almost surely, 2^{3955705157049} is an apocalyptic number.

It is an amenable number.

3955705157049 is a deficient number, since it is larger than the sum of its proper divisors (1318568385687).

3955705157049 is a wasteful number, since it uses less digits than its factorization.

3955705157049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318568385686.

The product of its (nonzero) digits is 29767500, while the sum is 60.

The spelling of 3955705157049 in words is "three trillion, nine hundred fifty-five billion, seven hundred five million, one hundred fifty-seven thousand, forty-nine".