11390775477 has 8 divisors (see below), whose sum is σ = 15188229216. Its totient is φ = 7593586032.

The previous prime is 11390775463. The next prime is 11390775491. The reversal of 11390775477 is 77457709311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11390775463) and next prime (11390775491).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11390775477 - 2⁶ = 11390775413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11390775427) 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, 81723 + ... + 171639.

It is an arithmetic number, because the mean of its divisors is an integer number (1898528652).

Almost surely, 2^11390775477 is an apocalyptic number.

It is an amenable number.

11390775477 is a deficient number, since it is larger than the sum of its proper divisors (3797453739).

11390775477 is an equidigital number, since it uses as much as digits as its factorization.

11390775477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132147.

The product of its (nonzero) digits is 1296540, while the sum is 51.

The spelling of 11390775477 in words is "eleven billion, three hundred ninety million, seven hundred seventy-five thousand, four hundred seventy-seven".