1949509419495 has 24 divisors (see below), whose sum is σ = 3428558717808. Its totient is φ = 945216687360.

The previous prime is 1949509419469. The next prime is 1949509419503. The reversal of 1949509419495 is 5949149059491.

It is not a de Polignac number, because 1949509419495 - 2¹⁰ = 1949509418471 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537053122 + ... + 537056751.

It is an arithmetic number, because the mean of its divisors is an integer number (142856613242).

Almost surely, 2^{1949509419495} is an apocalyptic number.

1949509419495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1949509419495 is a deficient number, since it is larger than the sum of its proper divisors (1479049298313).

1949509419495 is a wasteful number, since it uses less digits than its factorization.

1949509419495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074109903 (or 1074109892 counting only the distinct ones).

The product of its (nonzero) digits is 94478400, while the sum is 69.

The spelling of 1949509419495 in words is "one trillion, nine hundred forty-nine billion, five hundred nine million, four hundred nineteen thousand, four hundred ninety-five".