1949732545720 has 64 divisors (see below), whose sum is σ = 4422874453920. Its totient is φ = 773523308544.

The previous prime is 1949732545711. The next prime is 1949732545757. The reversal of 1949732545720 is 275452379491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1988239 + ... + 2802241.

Almost surely, 2^{1949732545720} is an apocalyptic number.

1949732545720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949732545720 is an abundant number, since it is smaller than the sum of its proper divisors (2473141908200).

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

1949732545720 is a wasteful number, since it uses less digits than its factorization.

1949732545720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814504 (or 814500 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 1949732545720 in words is "one trillion, nine hundred forty-nine billion, seven hundred thirty-two million, five hundred forty-five thousand, seven hundred twenty".