431378623350 has 96 divisors (see below), whose sum is σ = 1192980087840. Its totient is φ = 114618913920.

The previous prime is 431378623339. The next prime is 431378623367. The reversal of 431378623350 is 53326873134.

431378623350 is a `hidden beast` number, since 4 + 3 + 13 + 7 + 8 + 623 + 3 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 431378623296 and 431378623305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202837 + ... + 950736.

It is an arithmetic number, because the mean of its divisors is an integer number (12426875915).

Almost surely, 2^431378623350 is an apocalyptic number.

431378623350 is an abundant number, since it is smaller than the sum of its proper divisors (761601464490).

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

431378623350 is a wasteful number, since it uses less digits than its factorization.

431378623350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153871 (or 1153860 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 431378623350 in words is "four hundred thirty-one billion, three hundred seventy-eight million, six hundred twenty-three thousand, three hundred fifty".