2736390061 has 4 divisors (see below), whose sum is σ = 2803131324. Its totient is φ = 2669648800.

The previous prime is 2736390049. The next prime is 2736390067. The reversal of 2736390061 is 1600936372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52113961 + 2684276100 = 7219^2 + 51810^2 .

It is a cyclic number.

It is not a de Polignac number, because 2736390061 - 2⁵ = 2736390029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2736390061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2736390067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33370570 + ... + 33370651.

It is an arithmetic number, because the mean of its divisors is an integer number (700782831).

Almost surely, 2^2736390061 is an apocalyptic number.

It is an amenable number.

2736390061 is a deficient number, since it is larger than the sum of its proper divisors (66741263).

2736390061 is an equidigital number, since it uses as much as digits as its factorization.

2736390061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66741262.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 2736390061 is about 52310.5157783786. The cubic root of 2736390061 is about 1398.7045944313.

The spelling of 2736390061 in words is "two billion, seven hundred thirty-six million, three hundred ninety thousand, sixty-one".