1946274545 has 16 divisors (see below), whose sum is σ = 2361353040. Its totient is φ = 1539840000.

The previous prime is 1946274527. The next prime is 1946274569. The reversal of 1946274545 is 5454726491.

1946274545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 27133681 + 1919140864 = 5209^2 + 43808^2 .

It is not a de Polignac number, because 1946274545 - 2⁸ = 1946274289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1946274545.

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, 604901 + ... + 608109.

It is an arithmetic number, because the mean of its divisors is an integer number (147584565).

Almost surely, 2^1946274545 is an apocalyptic number.

It is an amenable number.

1946274545 is a deficient number, since it is larger than the sum of its proper divisors (415078495).

1946274545 is a wasteful number, since it uses less digits than its factorization.

1946274545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516.

The product of its digits is 1209600, while the sum is 47.

The square root of 1946274545 is about 44116.6016936935. The cubic root of 1946274545 is about 1248.5368576398.

The spelling of 1946274545 in words is "one billion, nine hundred forty-six million, two hundred seventy-four thousand, five hundred forty-five".