154434432133534 has 48 divisors (see below), whose sum is σ = 274151121782400. Its totient is φ = 65037919770096.

The previous prime is 154434432133517. The next prime is 154434432133537. The reversal of 154434432133534 is 435331234434451.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154434432133537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8786967 + ... + 19648909.

It is an arithmetic number, because the mean of its divisors is an integer number (5711481703800).

Almost surely, 2^{154434432133534} is an apocalyptic number.

154434432133534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

154434432133534 is a deficient number, since it is larger than the sum of its proper divisors (119716689648866).

154434432133534 is a wasteful number, since it uses less digits than its factorization.

154434432133534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10864477 (or 10864470 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 49.

Adding to 154434432133534 its reverse (435331234434451), we get a palindrome (589765666567985).

The spelling of 154434432133534 in words is "one hundred fifty-four trillion, four hundred thirty-four billion, four hundred thirty-two million, one hundred thirty-three thousand, five hundred thirty-four".