1949586658764 has 24 divisors (see below), whose sum is σ = 4600148298480. Its totient is φ = 642560396544.

The previous prime is 1949586658759. The next prime is 1949586658781. The reversal of 1949586658764 is 4678566859491.

It is a self number, because there is not a number n which added to its sum of digits gives 1949586658764.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912726769 + ... + 912728904.

It is an arithmetic number, because the mean of its divisors is an integer number (191672845770).

Almost surely, 2^{1949586658764} is an apocalyptic number.

It is an amenable number.

1949586658764 is an abundant number, since it is smaller than the sum of its proper divisors (2650561639716).

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

1949586658764 is a wasteful number, since it uses less digits than its factorization.

1949586658764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825455769 (or 1825455767 counting only the distinct ones).

The product of its digits is 3135283200, while the sum is 78.

The spelling of 1949586658764 in words is "one trillion, nine hundred forty-nine billion, five hundred eighty-six million, six hundred fifty-eight thousand, seven hundred sixty-four".