2761720036 has 12 divisors (see below), whose sum is σ = 4838502060. Its totient is φ = 1379290880.

The previous prime is 2761719959. The next prime is 2761720043. The reversal of 2761720036 is 6300271672.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 399760036 + 2361960000 = 19994^2 + 48600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2761719983 and 2761720010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388321 + ... + 395368.

It is an arithmetic number, because the mean of its divisors is an integer number (403208505).

Almost surely, 2^2761720036 is an apocalyptic number.

It is an amenable number.

2761720036 is a deficient number, since it is larger than the sum of its proper divisors (2076782024).

2761720036 is a wasteful number, since it uses less digits than its factorization.

2761720036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784574 (or 784572 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2761720036 is about 52552.0697594300. The cubic root of 2761720036 is about 1403.0071476990.

The spelling of 2761720036 in words is "two billion, seven hundred sixty-one million, seven hundred twenty thousand, thirty-six".