431640613450154 has 16 divisors (see below), whose sum is σ = 648633876516000. Its totient is φ = 215429333882544.

The previous prime is 431640613450133. The next prime is 431640613450169. The reversal of 431640613450154 is 451054316046134.

It is a super-2 number, since 2×431640613450154² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431640613450099 and 431640613450108.

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, 66058517 + ... + 72298055.

It is an arithmetic number, because the mean of its divisors is an integer number (40539617282250).

Almost surely, 2^{431640613450154} is an apocalyptic number.

431640613450154 is a deficient number, since it is larger than the sum of its proper divisors (216993263065846).

431640613450154 is a wasteful number, since it uses less digits than its factorization.

431640613450154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302197.

The product of its (nonzero) digits is 2073600, while the sum is 47.

Adding to 431640613450154 its reverse (451054316046134), we get a palindrome (882694929496288).

The spelling of 431640613450154 in words is "four hundred thirty-one trillion, six hundred forty billion, six hundred thirteen million, four hundred fifty thousand, one hundred fifty-four".