291109036653 has 48 divisors (see below), whose sum is σ = 429551216640. Its totient is φ = 189939520512.

The previous prime is 291109036627. The next prime is 291109036733. The reversal of 291109036653 is 356630901192.

It is not a de Polignac number, because 291109036653 - 2¹³ = 291109028461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 291109036599 and 291109036608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291109036613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76747125 + ... + 76750917.

It is an arithmetic number, because the mean of its divisors is an integer number (8948983680).

Almost surely, 2^291109036653 is an apocalyptic number.

It is an amenable number.

291109036653 is a deficient number, since it is larger than the sum of its proper divisors (138442179987).

291109036653 is a wasteful number, since it uses less digits than its factorization.

291109036653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4815 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 291109036653 in words is "two hundred ninety-one billion, one hundred nine million, thirty-six thousand, six hundred fifty-three".