2072869551 has 18 divisors (see below), whose sum is σ = 3180635432. Its totient is φ = 1300622400.

The previous prime is 2072869507. The next prime is 2072869559. The reversal of 2072869551 is 1559682702.

2072869551 is a `hidden beast` number, since 20 + 72 + 8 + 6 + 9 + 551 = 666.

It is not a de Polignac number, because 2072869551 - 2⁷ = 2072869423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2072869497 and 2072869506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072869559) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 395875 + ... + 401076.

Almost surely, 2^2072869551 is an apocalyptic number.

2072869551 is a deficient number, since it is larger than the sum of its proper divisors (1107765881).

2072869551 is a wasteful number, since it uses less digits than its factorization.

2072869551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796991 (or 796971 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 2072869551 is about 45528.7771744421. Note that the first 3 decimals coincide. The cubic root of 2072869551 is about 1275.0405320448.

The spelling of 2072869551 in words is "two billion, seventy-two million, eight hundred sixty-nine thousand, five hundred fifty-one".