40102423671 has 4 divisors (see below), whose sum is σ = 53469898232. Its totient is φ = 26734949112.

The previous prime is 40102423643. The next prime is 40102423681. The reversal of 40102423671 is 17632420104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40102423671 - 2⁶ = 40102423607 is a prime.

It is a super-2 number, since 2×40102423671² (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 (40102423631) 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, 6683737276 + ... + 6683737281.

It is an arithmetic number, because the mean of its divisors is an integer number (13367474558).

Almost surely, 2^40102423671 is an apocalyptic number.

40102423671 is a deficient number, since it is larger than the sum of its proper divisors (13367474561).

40102423671 is a wasteful number, since it uses less digits than its factorization.

40102423671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367474560.

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 40102423671 its reverse (17632420104), we get a palindrome (57734843775).

The spelling of 40102423671 in words is "forty billion, one hundred two million, four hundred twenty-three thousand, six hundred seventy-one".