40777345381 has 8 divisors (see below), whose sum is σ = 41014864800. Its totient is φ = 40539960720.

The previous prime is 40777345379. The next prime is 40777345457. The reversal of 40777345381 is 18354377704.

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

It is a cyclic number.

It is not a de Polignac number, because 40777345381 - 2¹ = 40777345379 is a prime.

It is a super-2 number, since 2×40777345381² (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 (40777345321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608730 + ... + 672388.

It is an arithmetic number, because the mean of its divisors is an integer number (5126858100).

Almost surely, 2^40777345381 is an apocalyptic number.

It is an amenable number.

40777345381 is a deficient number, since it is larger than the sum of its proper divisors (237519419).

40777345381 is a wasteful number, since it uses less digits than its factorization.

40777345381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67379.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 40777345381 in words is "forty billion, seven hundred seventy-seven million, three hundred forty-five thousand, three hundred eighty-one".