40402317473 has 4 divisors (see below), whose sum is σ = 46174077120. Its totient is φ = 34630557828.

The previous prime is 40402317463. The next prime is 40402317491. The reversal of 40402317473 is 37471320404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40402317473 - 2¹² = 40402313377 is a prime.

It is a super-3 number, since 3×40402317473³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40402317463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2885879813 + ... + 2885879826.

It is an arithmetic number, because the mean of its divisors is an integer number (11543519280).

Almost surely, 2^40402317473 is an apocalyptic number.

It is an amenable number.

40402317473 is a deficient number, since it is larger than the sum of its proper divisors (5771759647).

40402317473 is an equidigital number, since it uses as much as digits as its factorization.

40402317473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771759646.

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 40402317473 its reverse (37471320404), we get a palindrome (77873637877).

The spelling of 40402317473 in words is "forty billion, four hundred two million, three hundred seventeen thousand, four hundred seventy-three".