71405455149 has 80 divisors (see below), whose sum is σ = 125963160576. Its totient is φ = 39447648000.

The previous prime is 71405455139. The next prime is 71405455189. The reversal of 71405455149 is 94155450417.

71405455149 is a `hidden beast` number, since 7 + 1 + 4 + 0 + 54 + 551 + 49 = 666.

It is not a de Polignac number, because 71405455149 - 2⁴ = 71405455133 is a prime.

It is a super-3 number, since 3×71405455149³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71405455129) 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, 33412809 + ... + 33414945.

Almost surely, 2^71405455149 is an apocalyptic number.

It is an amenable number.

71405455149 is a deficient number, since it is larger than the sum of its proper divisors (54557705427).

71405455149 is a wasteful number, since it uses less digits than its factorization.

71405455149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 71405455149 in words is "seventy-one billion, four hundred five million, four hundred fifty-five thousand, one hundred forty-nine".