80780002551 has 6 divisors (see below), whose sum is σ = 116682225920. Its totient is φ = 53853335028.

The previous prime is 80780002547. The next prime is 80780002561. The reversal of 80780002551 is 15520008708.

It is not a de Polignac number, because 80780002551 - 2² = 80780002547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80780002561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4487777911 + ... + 4487777928.

Almost surely, 2^80780002551 is an apocalyptic number.

80780002551 is a deficient number, since it is larger than the sum of its proper divisors (35902223369).

80780002551 is a wasteful number, since it uses less digits than its factorization.

80780002551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8975555845 (or 8975555842 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The spelling of 80780002551 in words is "eighty billion, seven hundred eighty million, two thousand, five hundred fifty-one".