111477405649 has 2 divisors, whose sum is σ = 111477405650. Its totient is φ = 111477405648.

The previous prime is 111477405643. The next prime is 111477405653. The reversal of 111477405649 is 946504774111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104493795025 + 6983610624 = 323255^2 + 83568^2 .

It is a cyclic number.

It is not a de Polignac number, because 111477405649 - 2⁵ = 111477405617 is a prime.

It is a super-2 number, since 2×111477405649² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111477405643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55738702824 + 55738702825.

It is an arithmetic number, because the mean of its divisors is an integer number (55738702825).

Almost surely, 2^111477405649 is an apocalyptic number.

It is an amenable number.

111477405649 is a deficient number, since it is larger than the sum of its proper divisors (1).

111477405649 is an equidigital number, since it uses as much as digits as its factorization.

111477405649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 111477405649 in words is "one hundred eleven billion, four hundred seventy-seven million, four hundred five thousand, six hundred forty-nine".