1421736911 has 24 divisors (see below), whose sum is σ = 1807664256. Its totient is φ = 1109928960.

The previous prime is 1421736859. The next prime is 1421736917. The reversal of 1421736911 is 1196371241.

It is not a de Polignac number, because 1421736911 - 2¹⁴ = 1421720527 is a prime.

It is a super-3 number, since 3×1421736911³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421736917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1706 + ... + 53351.

It is an arithmetic number, because the mean of its divisors is an integer number (75319344).

Almost surely, 2^1421736911 is an apocalyptic number.

1421736911 is a deficient number, since it is larger than the sum of its proper divisors (385927345).

1421736911 is a wasteful number, since it uses less digits than its factorization.

1421736911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55119 (or 55112 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 1421736911 is about 37705.9267357268. The cubic root of 1421736911 is about 1124.4489577236.

The spelling of 1421736911 in words is "one billion, four hundred twenty-one million, seven hundred thirty-six thousand, nine hundred eleven".