72802292747 has 4 divisors (see below), whose sum is σ = 73266001776. Its totient is φ = 72338583720.

The previous prime is 72802292743. The next prime is 72802292803. The reversal of 72802292747 is 74729220827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72802292747 - 2² = 72802292743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72802292695 and 72802292704.

It is not an unprimeable number, because it can be changed into a prime (72802292741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231854279 + ... + 231854592.

It is an arithmetic number, because the mean of its divisors is an integer number (18316500444).

Almost surely, 2^72802292747 is an apocalyptic number.

72802292747 is a deficient number, since it is larger than the sum of its proper divisors (463709029).

72802292747 is a wasteful number, since it uses less digits than its factorization.

72802292747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463709028.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 72802292747 in words is "seventy-two billion, eight hundred two million, two hundred ninety-two thousand, seven hundred forty-seven".