36387780739 has 2 divisors, whose sum is σ = 36387780740. Its totient is φ = 36387780738.

The previous prime is 36387780641. The next prime is 36387780787. The reversal of 36387780739 is 93708778363.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36387780739 - 2³⁵ = 2028042371 is a prime.

It is a super-2 number, since 2×36387780739² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36387780799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18193890369 + 18193890370.

It is an arithmetic number, because the mean of its divisors is an integer number (18193890370).

Almost surely, 2^36387780739 is an apocalyptic number.

36387780739 is a deficient number, since it is larger than the sum of its proper divisors (1).

36387780739 is an equidigital number, since it uses as much as digits as its factorization.

36387780739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 36387780739 in words is "thirty-six billion, three hundred eighty-seven million, seven hundred eighty thousand, seven hundred thirty-nine".