80902992722 has 4 divisors (see below), whose sum is σ = 121354489086. Its totient is φ = 40451496360.

The previous prime is 80902992661. The next prime is 80902992739. The reversal of 80902992722 is 22729920908.

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

It can be written as a sum of positive squares in only one way, i.e., 80644072441 + 258920281 = 283979^2 + 16091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225748179 + ... + 20225748182.

Almost surely, 2^80902992722 is an apocalyptic number.

80902992722 is a deficient number, since it is larger than the sum of its proper divisors (40451496364).

80902992722 is a wasteful number, since it uses less digits than its factorization.

80902992722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40451496363.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 80902992722 in words is "eighty billion, nine hundred two million, nine hundred ninety-two thousand, seven hundred twenty-two".