71189481154 has 16 divisors (see below), whose sum is σ = 117560615040. Its totient is φ = 32061983760.

The previous prime is 71189481119. The next prime is 71189481157. The reversal of 71189481154 is 45118498117.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71189481098 and 71189481107.

It is not an unprimeable number, because it can be changed into a prime (71189481157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14841114 + ... + 14845909.

It is an arithmetic number, because the mean of its divisors is an integer number (7347538440).

Almost surely, 2^71189481154 is an apocalyptic number.

71189481154 is a deficient number, since it is larger than the sum of its proper divisors (46371133886).

71189481154 is a wasteful number, since it uses less digits than its factorization.

71189481154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29687145.

The product of its digits is 322560, while the sum is 49.

The spelling of 71189481154 in words is "seventy-one billion, one hundred eighty-nine million, four hundred eighty-one thousand, one hundred fifty-four".