11898066477 has 16 divisors (see below), whose sum is σ = 17308936512. Its totient is φ = 7209841920.

The previous prime is 11898066473. The next prime is 11898066511. The reversal of 11898066477 is 77466089811.

It is a happy number.

It is not a de Polignac number, because 11898066477 - 2² = 11898066473 is a prime.

It is a super-2 number, since 2×11898066477² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898066473) 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, 224803 + ... + 272639.

It is an arithmetic number, because the mean of its divisors is an integer number (1081808532).

Almost surely, 2^11898066477 is an apocalyptic number.

It is an amenable number.

11898066477 is a deficient number, since it is larger than the sum of its proper divisors (5410870035).

11898066477 is a wasteful number, since it uses less digits than its factorization.

11898066477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55388.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 11898066477 in words is "eleven billion, eight hundred ninety-eight million, sixty-six thousand, four hundred seventy-seven".