12077287290 has 48 divisors (see below), whose sum is σ = 32249630088. Its totient is φ = 3133565568.

The previous prime is 12077287289. The next prime is 12077287291. The reversal of 12077287290 is 9278277021.

12077287290 is a `hidden beast` number, since 12 + 0 + 77 + 287 + 290 = 666.

It is an interprime number because it is at equal distance from previous prime (12077287289) and next prime (12077287291).

It can be written as a sum of positive squares in 4 ways, for example, as 12075152769 + 2134521 = 109887^2 + 1461^2 .

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 (12077287291) 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, 1810077 + ... + 1816736.

Almost surely, 2^12077287290 is an apocalyptic number.

12077287290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12077287290 is an abundant number, since it is smaller than the sum of its proper divisors (20172342798).

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

12077287290 is a wasteful number, since it uses less digits than its factorization.

12077287290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3626863 (or 3626860 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 12077287290 in words is "twelve billion, seventy-seven million, two hundred eighty-seven thousand, two hundred ninety".