1127691477 has 80 divisors (see below), whose sum is σ = 2002017600. Its totient is φ = 624879360.

The previous prime is 1127691457. The next prime is 1127691479. The reversal of 1127691477 is 7741967211.

1127691477 is a `hidden beast` number, since 112 + 7 + 69 + 1 + 477 = 666.

It is not a de Polignac number, because 1127691477 - 2⁷ = 1127691349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127691479) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 489793 + ... + 492089.

It is an arithmetic number, because the mean of its divisors is an integer number (25025220).

Almost surely, 2^1127691477 is an apocalyptic number.

It is an amenable number.

1127691477 is a deficient number, since it is larger than the sum of its proper divisors (874326123).

1127691477 is a wasteful number, since it uses less digits than its factorization.

1127691477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368 (or 2359 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 1127691477 is about 33581.1178640616. The cubic root of 1127691477 is about 1040.8706580493.

The spelling of 1127691477 in words is "one billion, one hundred twenty-seven million, six hundred ninety-one thousand, four hundred seventy-seven".