31403764853 has 4 divisors (see below), whose sum is σ = 31651038720. Its totient is φ = 31156490988.

The previous prime is 31403764831. The next prime is 31403764867. The reversal of 31403764853 is 35846730413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31403764853 - 2¹⁴ = 31403748469 is a prime.

It is a super-2 number, since 2×31403764853² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31403764883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123636743 + ... + 123636996.

It is an arithmetic number, because the mean of its divisors is an integer number (7912759680).

Almost surely, 2^31403764853 is an apocalyptic number.

It is an amenable number.

31403764853 is a deficient number, since it is larger than the sum of its proper divisors (247273867).

31403764853 is a wasteful number, since it uses less digits than its factorization.

31403764853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247273866.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 31403764853 in words is "thirty-one billion, four hundred three million, seven hundred sixty-four thousand, eight hundred fifty-three".