264434645253503 has 8 divisors (see below), whose sum is σ = 279990277292880. Its totient is φ = 248879085759360.

The previous prime is 264434645253481. The next prime is 264434645253517. The reversal of 264434645253503 is 305352546434462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264434645253503 - 2¹⁶ = 264434645187967 is a prime.

It is a super-2 number, since 2×264434645253503² (a number of 30 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 (264434645253523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10540793 + ... + 25297778.

It is an arithmetic number, because the mean of its divisors is an integer number (34998784661610).

Almost surely, 2^{264434645253503} is an apocalyptic number.

264434645253503 is a deficient number, since it is larger than the sum of its proper divisors (15555632039377).

264434645253503 is a wasteful number, since it uses less digits than its factorization.

264434645253503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36272617.

The product of its (nonzero) digits is 124416000, while the sum is 56.

The spelling of 264434645253503 in words is "two hundred sixty-four trillion, four hundred thirty-four billion, six hundred forty-five million, two hundred fifty-three thousand, five hundred three".