13077506421500 has 48 divisors (see below), whose sum is σ = 29333200391040. Its totient is φ = 5089624113600.

The previous prime is 13077506421359. The next prime is 13077506421503. The reversal of 13077506421500 is 512460577031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13077506421503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353427620 + ... + 353464619.

It is an arithmetic number, because the mean of its divisors is an integer number (611108341480).

Almost surely, 2^{13077506421500} is an apocalyptic number.

13077506421500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13077506421500 is an abundant number, since it is smaller than the sum of its proper divisors (16255693969540).

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

13077506421500 is a wasteful number, since it uses less digits than its factorization.

13077506421500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706892295 (or 706892283 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

Adding to 13077506421500 its reverse (512460577031), we get a palindrome (13589966998531).

The spelling of 13077506421500 in words is "thirteen trillion, seventy-seven billion, five hundred six million, four hundred twenty-one thousand, five hundred".