1952905479868 has 24 divisors (see below), whose sum is σ = 3905931865472. Its totient is φ = 836933583024.

The previous prime is 1952905479857. The next prime is 1952905479869. The reversal of 1952905479868 is 8689745092591.

It is a self number, because there is not a number n which added to its sum of digits gives 1952905479868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1952905479869) 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, 144630 + ... + 1981597.

Almost surely, 2^{1952905479868} is an apocalyptic number.

It is an amenable number.

1952905479868 is an abundant number, since it is smaller than the sum of its proper divisors (1953026385604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1952905479868 is a wasteful number, since it uses less digits than its factorization.

1952905479868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159041 (or 2159039 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 73.

The spelling of 1952905479868 in words is "one trillion, nine hundred fifty-two billion, nine hundred five million, four hundred seventy-nine thousand, eight hundred sixty-eight".