11309347890 has 48 divisors (see below), whose sum is σ = 29818466496. Its totient is φ = 2973348000.

The previous prime is 11309347883. The next prime is 11309347897. The reversal of 11309347890 is 9874390311.

11309347890 is a `hidden beast` number, since 1 + 1 + 3 + 0 + 93 + 478 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (11309347883) and next prime (11309347897).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11309347897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 878536 + ... + 891315.

It is an arithmetic number, because the mean of its divisors is an integer number (621218052).

Almost surely, 2^11309347890 is an apocalyptic number.

11309347890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11309347890 is an abundant number, since it is smaller than the sum of its proper divisors (18509118606).

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

11309347890 is a wasteful number, since it uses less digits than its factorization.

11309347890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769935 (or 1769932 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 11309347890 in words is "eleven billion, three hundred nine million, three hundred forty-seven thousand, eight hundred ninety".