40640051374 has 16 divisors (see below), whose sum is σ = 65654119440. Its totient is φ = 18755573760.

The previous prime is 40640051329. The next prime is 40640051423. The reversal of 40640051374 is 47315004604.

It is a super-2 number, since 2×40640051374² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363054 + ... + 461614.

It is an arithmetic number, because the mean of its divisors is an integer number (4103382465).

Almost surely, 2^40640051374 is an apocalyptic number.

40640051374 is a deficient number, since it is larger than the sum of its proper divisors (25014068066).

40640051374 is a wasteful number, since it uses less digits than its factorization.

40640051374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114435.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 40640051374 its reverse (47315004604), we get a palindrome (87955055978).

The spelling of 40640051374 in words is "forty billion, six hundred forty million, fifty-one thousand, three hundred seventy-four".