1949732658685 has 32 divisors (see below), whose sum is σ = 2695191662592. Its totient is φ = 1326364891200.

The previous prime is 1949732658641. The next prime is 1949732658689. The reversal of 1949732658685 is 5868562379491.

It is not a de Polignac number, because 1949732658685 - 2¹⁵ = 1949732625917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949732658689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1814860 + ... + 2682010.

It is an arithmetic number, because the mean of its divisors is an integer number (84224739456).

Almost surely, 2^{1949732658685} is an apocalyptic number.

It is an amenable number.

1949732658685 is a deficient number, since it is larger than the sum of its proper divisors (745459003907).

1949732658685 is a wasteful number, since it uses less digits than its factorization.

1949732658685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867673.

The product of its digits is 783820800, while the sum is 73.

The spelling of 1949732658685 in words is "one trillion, nine hundred forty-nine billion, seven hundred thirty-two million, six hundred fifty-eight thousand, six hundred eighty-five".