2015623761043 has 2 divisors, whose sum is σ = 2015623761044. Its totient is φ = 2015623761042.

The previous prime is 2015623761037. The next prime is 2015623761119. The reversal of 2015623761043 is 3401673265102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2015623761043 is a prime.

It is a super-2 number, since 2×2015623761043² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2015623760987 and 2015623761005.

It is not a weakly prime, because it can be changed into another prime (2015623761023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007811880521 + 1007811880522.

It is an arithmetic number, because the mean of its divisors is an integer number (1007811880522).

Almost surely, 2^{2015623761043} is an apocalyptic number.

2015623761043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015623761043 is an equidigital number, since it uses as much as digits as its factorization.

2015623761043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 2015623761043 in words is "two trillion, fifteen billion, six hundred twenty-three million, seven hundred sixty-one thousand, forty-three".