2780487070 has 16 divisors (see below), whose sum is σ = 5121270000. Its totient is φ = 1086329664.

The previous prime is 2780487011. The next prime is 2780487077. The reversal of 2780487070 is 707840872.

It is a super-2 number, since 2×2780487070² = 15462216692874369800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780487077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3232695 + ... + 3233554.

It is an arithmetic number, because the mean of its divisors is an integer number (320079375).

Almost surely, 2^2780487070 is an apocalyptic number.

2780487070 is a deficient number, since it is larger than the sum of its proper divisors (2340782930).

2780487070 is a wasteful number, since it uses less digits than its factorization.

2780487070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466299.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 2780487070 is about 52730.3240081075. The cubic root of 2780487070 is about 1406.1779814443.

The spelling of 2780487070 in words is "two billion, seven hundred eighty million, four hundred eighty-seven thousand, seventy".