10811252640 has 96 divisors (see below), whose sum is σ = 34847499456. Its totient is φ = 2815948800.

The previous prime is 10811252633. The next prime is 10811252651. The reversal of 10811252640 is 4625211801.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10811252598 and 10811252607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241261 + ... + 282540.

It is an arithmetic number, because the mean of its divisors is an integer number (362994786).

Almost surely, 2^10811252640 is an apocalyptic number.

10811252640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10811252640 is an abundant number, since it is smaller than the sum of its proper divisors (24036246816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10811252640 is a wasteful number, since it uses less digits than its factorization.

10811252640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523862 (or 523854 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The spelling of 10811252640 in words is "ten billion, eight hundred eleven million, two hundred fifty-two thousand, six hundred forty".