10521823465 has 8 divisors (see below), whose sum is σ = 12626981568. Its totient is φ = 8416929840.

The previous prime is 10521823451. The next prime is 10521823511. The reversal of 10521823465 is 56432812501.

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

It is not a de Polignac number, because 10521823465 - 2²¹ = 10519726313 is a prime.

It is a super-2 number, since 2×10521823465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35650 + ... + 149380.

It is an arithmetic number, because the mean of its divisors is an integer number (1578372696).

Almost surely, 2^10521823465 is an apocalyptic number.

It is an amenable number.

10521823465 is a deficient number, since it is larger than the sum of its proper divisors (2105158103).

10521823465 is a wasteful number, since it uses less digits than its factorization.

10521823465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132239.

The product of its (nonzero) digits is 57600, while the sum is 37.

It can be divided in two parts, 10521 and 823465, that added together give a triangular number (833986 = T₁₂₉₁).

The spelling of 10521823465 in words is "ten billion, five hundred twenty-one million, eight hundred twenty-three thousand, four hundred sixty-five".