780610945 has 16 divisors (see below), whose sum is σ = 944084160. Its totient is φ = 619605184.

The previous prime is 780610927. The next prime is 780610967. The reversal of 780610945 is 549016087.

It is a cyclic number.

It is not a de Polignac number, because 780610945 - 2¹⁵ = 780578177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 780610898 and 780610907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610647 + ... + 611923.

It is an arithmetic number, because the mean of its divisors is an integer number (59005260).

Almost surely, 2^780610945 is an apocalyptic number.

It is an amenable number.

780610945 is a deficient number, since it is larger than the sum of its proper divisors (163473215).

780610945 is a wasteful number, since it uses less digits than its factorization.

780610945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 780610945 is about 27939.4156166517. The cubic root of 780610945 is about 920.7566809564.

The spelling of 780610945 in words is "seven hundred eighty million, six hundred ten thousand, nine hundred forty-five".