434683157491 has 16 divisors (see below), whose sum is σ = 495589321728. Its totient is φ = 377395532800.

The previous prime is 434683157369. The next prime is 434683157521. The reversal of 434683157491 is 194751386434.

It is not a de Polignac number, because 434683157491 - 2¹⁷ = 434683026419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434683158491) 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, 1178011 + ... + 1502356.

It is an arithmetic number, because the mean of its divisors is an integer number (30974332608).

Almost surely, 2^434683157491 is an apocalyptic number.

434683157491 is a deficient number, since it is larger than the sum of its proper divisors (60906164237).

434683157491 is a wasteful number, since it uses less digits than its factorization.

434683157491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681042.

The product of its digits is 8709120, while the sum is 55.

The spelling of 434683157491 in words is "four hundred thirty-four billion, six hundred eighty-three million, one hundred fifty-seven thousand, four hundred ninety-one".