1551034235420 has 24 divisors (see below), whose sum is σ = 3287612757744. Its totient is φ = 614615434496.

The previous prime is 1551034235417. The next prime is 1551034235441. The reversal of 1551034235420 is 245324301551.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 362389037 + ... + 362393316.

It is an arithmetic number, because the mean of its divisors is an integer number (136983864906).

Almost surely, 2^{1551034235420} is an apocalyptic number.

1551034235420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551034235420 is an abundant number, since it is smaller than the sum of its proper divisors (1736578522324).

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

1551034235420 is a wasteful number, since it uses less digits than its factorization.

1551034235420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724782469 (or 724782467 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 1551034235420 its reverse (245324301551), we get a palindrome (1796358536971).

The spelling of 1551034235420 in words is "one trillion, five hundred fifty-one billion, thirty-four million, two hundred thirty-five thousand, four hundred twenty".