71902545154 has 32 divisors (see below), whose sum is σ = 120061932480. Its totient is φ = 32019201600.

The previous prime is 71902545137. The next prime is 71902545157. The reversal of 71902545154 is 45154520917.

It is a self number, because there is not a number n which added to its sum of digits gives 71902545154.

It is not an unprimeable number, because it can be changed into a prime (71902545157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285784 + ... + 474844.

It is an arithmetic number, because the mean of its divisors is an integer number (3751935390).

Almost surely, 2^71902545154 is an apocalyptic number.

71902545154 is a deficient number, since it is larger than the sum of its proper divisors (48159387326).

71902545154 is a wasteful number, since it uses less digits than its factorization.

71902545154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189426.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 71902545154 in words is "seventy-one billion, nine hundred two million, five hundred forty-five thousand, one hundred fifty-four".