1956120049 has 8 divisors (see below), whose sum is σ = 2107512512. Its totient is φ = 1804859280.

The previous prime is 1956119999. The next prime is 1956120073. The reversal of 1956120049 is 9400216591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1956120049 - 2²¹ = 1954022897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1956126049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909 + ... + 62554.

It is an arithmetic number, because the mean of its divisors is an integer number (263439064).

Almost surely, 2^1956120049 is an apocalyptic number.

It is an amenable number.

1956120049 is a deficient number, since it is larger than the sum of its proper divisors (151392463).

1956120049 is a wasteful number, since it uses less digits than its factorization.

1956120049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65847.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1956120049 is about 44228.0459550272. The cubic root of 1956120049 is about 1250.6386174653.

The spelling of 1956120049 in words is "one billion, nine hundred fifty-six million, one hundred twenty thousand, forty-nine".