40349555377 has 8 divisors (see below), whose sum is σ = 41494533192. Its totient is φ = 39212236800.

The previous prime is 40349555357. The next prime is 40349555423. The reversal of 40349555377 is 77355594304.

It can be written as a sum of positive squares in 4 ways, for example, as 16248855841 + 24100699536 = 127471^2 + 155244^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40349555377 is a prime.

It is a super-2 number, since 2×40349555377² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40349555317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904124 + ... + 1925197.

It is an arithmetic number, because the mean of its divisors is an integer number (5186816649).

Almost surely, 2^40349555377 is an apocalyptic number.

It is an amenable number.

40349555377 is a deficient number, since it is larger than the sum of its proper divisors (1144977815).

40349555377 is a wasteful number, since it uses less digits than its factorization.

40349555377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829619.

The product of its (nonzero) digits is 7938000, while the sum is 52.

The spelling of 40349555377 in words is "forty billion, three hundred forty-nine million, five hundred fifty-five thousand, three hundred seventy-seven".