1949547963 has 16 divisors (see below), whose sum is σ = 2844289152. Its totient is φ = 1177968000.

The previous prime is 1949547911. The next prime is 1949547979. The reversal of 1949547963 is 3697459491.

It is not a de Polignac number, because 1949547963 - 2¹³ = 1949539771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1949547163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78318 + ... + 100163.

It is an arithmetic number, because the mean of its divisors is an integer number (177768072).

Almost surely, 2^1949547963 is an apocalyptic number.

1949547963 is a deficient number, since it is larger than the sum of its proper divisors (894741189).

1949547963 is a wasteful number, since it uses less digits than its factorization.

1949547963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178826.

The product of its digits is 7348320, while the sum is 57.

The square root of 1949547963 is about 44153.6857238442. The cubic root of 1949547963 is about 1249.2364324400.

The spelling of 1949547963 in words is "one billion, nine hundred forty-nine million, five hundred forty-seven thousand, nine hundred sixty-three".