11335778890 has 16 divisors (see below), whose sum is σ = 20406873960. Its totient is φ = 4533762240.

The previous prime is 11335778819. The next prime is 11335778899. The reversal of 11335778890 is 9887753311.

It can be written as a sum of positive squares in 4 ways, for example, as 10602614961 + 733163929 = 102969^2 + 27077^2 .

It is not an unprimeable number, because it can be changed into a prime (11335778899) 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, 23956 + ... + 152464.

Almost surely, 2^11335778890 is an apocalyptic number.

11335778890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11335778890 is a deficient number, since it is larger than the sum of its proper divisors (9071095070).

11335778890 is a wasteful number, since it uses less digits than its factorization.

11335778890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137337.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 11335778890 in words is "eleven billion, three hundred thirty-five million, seven hundred seventy-eight thousand, eight hundred ninety".