71445900246 has 32 divisors (see below), whose sum is σ = 163335118848. Its totient is φ = 20409338880.

The previous prime is 71445900217. The next prime is 71445900263. The reversal of 71445900246 is 64200954417.

It is a super-2 number, since 2×71445900246² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 71445900198 and 71445900207.

It is a congruent 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, 76566 + ... + 385686.

It is an arithmetic number, because the mean of its divisors is an integer number (5104222464).

Almost surely, 2^71445900246 is an apocalyptic number.

71445900246 is an abundant number, since it is smaller than the sum of its proper divisors (91889218602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71445900246 is a wasteful number, since it uses less digits than its factorization.

71445900246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314636.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 71445900246 in words is "seventy-one billion, four hundred forty-five million, nine hundred thousand, two hundred forty-six".