934540649591 has 4 divisors (see below), whose sum is σ = 936398583792. Its totient is φ = 932682715392.

The previous prime is 934540649573. The next prime is 934540649599. The reversal of 934540649591 is 195946045439.

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

It is a cyclic number.

It is not a de Polignac number, because 934540649591 - 2¹⁰ = 934540648567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 934540649591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (934540649599) 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, 928966346 + ... + 928967351.

It is an arithmetic number, because the mean of its divisors is an integer number (234099645948).

Almost surely, 2^934540649591 is an apocalyptic number.

934540649591 is a deficient number, since it is larger than the sum of its proper divisors (1857934201).

934540649591 is a wasteful number, since it uses less digits than its factorization.

934540649591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857934200.

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 934540649591 in words is "nine hundred thirty-four billion, five hundred forty million, six hundred forty-nine thousand, five hundred ninety-one".