1829493294157 has 4 divisors (see below), whose sum is σ = 1829687992636. Its totient is φ = 1829298595680.

The previous prime is 1829493294127. The next prime is 1829493294173. The reversal of 1829493294157 is 7514923949281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 602702242921 + 1226791051236 = 776339^2 + 1107606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1829493294157 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 (1829493294127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97335144 + ... + 97353937.

It is an arithmetic number, because the mean of its divisors is an integer number (457421998159).

Almost surely, 2^{1829493294157} is an apocalyptic number.

It is an amenable number.

1829493294157 is a deficient number, since it is larger than the sum of its proper divisors (194698479).

1829493294157 is an equidigital number, since it uses as much as digits as its factorization.

1829493294157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194698478.

The product of its digits is 39191040, while the sum is 64.

The spelling of 1829493294157 in words is "one trillion, eight hundred twenty-nine billion, four hundred ninety-three million, two hundred ninety-four thousand, one hundred fifty-seven".