11051709890 has 32 divisors (see below), whose sum is σ = 21431084976. Its totient is φ = 4079151360.

The previous prime is 11051709883. The next prime is 11051709899. The reversal of 11051709890 is 9890715011.

It can be written as a sum of positive squares in 8 ways, for example, as 6480733009 + 4570976881 = 80503^2 + 67609^2 .

It is not an unprimeable number, because it can be changed into a prime (11051709899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384044 + ... + 411816.

Almost surely, 2^11051709890 is an apocalyptic number.

11051709890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11051709890 is a deficient number, since it is larger than the sum of its proper divisors (10379375086).

11051709890 is a wasteful number, since it uses less digits than its factorization.

11051709890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30854.

The product of its (nonzero) digits is 22680, while the sum is 41.

The spelling of 11051709890 in words is "eleven billion, fifty-one million, seven hundred nine thousand, eight hundred ninety".