72000441634 has 32 divisors (see below), whose sum is σ = 121029028416. Its totient is φ = 31836150720.

The previous prime is 72000441629. The next prime is 72000441637. The reversal of 72000441634 is 43614400027.

It is a junction number, because it is equal to n+sod(n) for n = 72000441596 and 72000441605.

It is not an unprimeable number, because it can be changed into a prime (72000441637) 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, 7017252 + ... + 7027504.

It is an arithmetic number, because the mean of its divisors is an integer number (3782157138).

Almost surely, 2^72000441634 is an apocalyptic number.

72000441634 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

72000441634 is a deficient number, since it is larger than the sum of its proper divisors (49028586782).

72000441634 is a wasteful number, since it uses less digits than its factorization.

72000441634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930.

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 72000441634 in words is "seventy-two billion, four hundred forty-one thousand, six hundred thirty-four".