431687578740 has 72 divisors (see below), whose sum is σ = 1328598818400. Its totient is φ = 104651532480.

The previous prime is 431687578727. The next prime is 431687578741. The reversal of 431687578740 is 47875786134.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431687578741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29723290 + ... + 29737809.

Almost surely, 2^431687578740 is an apocalyptic number.

It is an amenable number.

431687578740 is an abundant number, since it is smaller than the sum of its proper divisors (896911239660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431687578740 is a wasteful number, since it uses less digits than its factorization.

431687578740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59461133 (or 59461120 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 431687578740 in words is "four hundred thirty-one billion, six hundred eighty-seven million, five hundred seventy-eight thousand, seven hundred forty".