71990452435 has 16 divisors (see below), whose sum is σ = 94929954912. Its totient is φ = 51974521600.

The previous prime is 71990452421. The next prime is 71990452441. The reversal of 71990452435 is 53425409917.

It is not a de Polignac number, because 71990452435 - 2⁵ = 71990452403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 4769536 + ... + 4784605.

It is an arithmetic number, because the mean of its divisors is an integer number (5933122182).

Almost surely, 2^71990452435 is an apocalyptic number.

71990452435 is a deficient number, since it is larger than the sum of its proper divisors (22939502477).

71990452435 is a wasteful number, since it uses less digits than its factorization.

71990452435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554294.

The product of its (nonzero) digits is 1360800, while the sum is 49.

It can be divided in two parts, 71990 and 452435, that added together give a palindrome (524425).

The spelling of 71990452435 in words is "seventy-one billion, nine hundred ninety million, four hundred fifty-two thousand, four hundred thirty-five".