40710367781 has 4 divisors (see below), whose sum is σ = 40713423564. Its totient is φ = 40707312000.

The previous prime is 40710367757. The next prime is 40710367787. The reversal of 40710367781 is 18776301704.

40710367781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 21400764100 + 19309603681 = 146290^2 + 138959^2 .

It is a cyclic number.

It is not a de Polignac number, because 40710367781 - 2¹⁰ = 40710366757 is a prime.

It is a super-2 number, since 2×40710367781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40710367787) 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, 1507820 + ... + 1534581.

It is an arithmetic number, because the mean of its divisors is an integer number (10178355891).

Almost surely, 2^40710367781 is an apocalyptic number.

It is an amenable number.

40710367781 is a deficient number, since it is larger than the sum of its proper divisors (3055783).

40710367781 is a wasteful number, since it uses less digits than its factorization.

40710367781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055782.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 40710367781 in words is "forty billion, seven hundred ten million, three hundred sixty-seven thousand, seven hundred eighty-one".