40257131770 has 8 divisors (see below), whose sum is σ = 72462837204. Its totient is φ = 16102852704.

The previous prime is 40257131737. The next prime is 40257131773. The reversal of 40257131770 is 7713175204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40057220449 + 199911321 = 200143^2 + 14139^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40257131773) 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 3 ways as a sum of consecutive naturals, for example, 2012856579 + ... + 2012856598.

Almost surely, 2^40257131770 is an apocalyptic number.

40257131770 is a deficient number, since it is larger than the sum of its proper divisors (32205705434).

40257131770 is a wasteful number, since it uses less digits than its factorization.

40257131770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025713184.

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 40257131770 in words is "forty billion, two hundred fifty-seven million, one hundred thirty-one thousand, seven hundred seventy".