13421553510 has 32 divisors (see below), whose sum is σ = 33322479840. Its totient is φ = 3455664128.

The previous prime is 13421553503. The next prime is 13421553511. The reversal of 13421553510 is 1535512431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421553511) 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, 7712667 + ... + 7714406.

It is an arithmetic number, because the mean of its divisors is an integer number (1041327495).

Almost surely, 2^13421553510 is an apocalyptic number.

13421553510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13421553510 is an abundant number, since it is smaller than the sum of its proper divisors (19900926330).

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

13421553510 is a wasteful number, since it uses less digits than its factorization.

13421553510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427112.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 13421553510 in words is "thirteen billion, four hundred twenty-one million, five hundred fifty-three thousand, five hundred ten".