71274154451 has 16 divisors (see below), whose sum is σ = 75085623648. Its totient is φ = 67585939200.

The previous prime is 71274154447. The next prime is 71274154481. The reversal of 71274154451 is 15445147217.

It is a happy number.

It is not a de Polignac number, because 71274154451 - 2² = 71274154447 is a prime.

It is a super-2 number, since 2×71274154451² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71274154399 and 71274154408.

It is not an unprimeable number, because it can be changed into a prime (71274154481) 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, 79241 + ... + 385781.

It is an arithmetic number, because the mean of its divisors is an integer number (4692851478).

Almost surely, 2^71274154451 is an apocalyptic number.

71274154451 is a deficient number, since it is larger than the sum of its proper divisors (3811469197).

71274154451 is a wasteful number, since it uses less digits than its factorization.

71274154451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306742.

The product of its digits is 156800, while the sum is 41.

The spelling of 71274154451 in words is "seventy-one billion, two hundred seventy-four million, one hundred fifty-four thousand, four hundred fifty-one".