634233431534 has 4 divisors (see below), whose sum is σ = 951350147304. Its totient is φ = 317116715766.

The previous prime is 634233431497. The next prime is 634233431539. The reversal of 634233431534 is 435134332436.

634233431534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-4 number, since 4×634233431534⁴ (a number of 48 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634233431491 and 634233431500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634233431539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158558357882 + ... + 158558357885.

It is an arithmetic number, because the mean of its divisors is an integer number (237837536826).

Almost surely, 2^634233431534 is an apocalyptic number.

634233431534 is a deficient number, since it is larger than the sum of its proper divisors (317116715770).

634233431534 is a wasteful number, since it uses less digits than its factorization.

634233431534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317116715769.

The product of its digits is 933120, while the sum is 41.

The spelling of 634233431534 in words is "six hundred thirty-four billion, two hundred thirty-three million, four hundred thirty-one thousand, five hundred thirty-four".