13421447634 has 32 divisors (see below), whose sum is σ = 30761220096. Its totient is φ = 3824246160.

The previous prime is 13421447593. The next prime is 13421447647. The reversal of 13421447634 is 43674412431.

It is a junction number, because it is equal to n+sod(n) for n = 13421447592 and 13421447601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419952 + ... + 450779.

It is an arithmetic number, because the mean of its divisors is an integer number (961288128).

Almost surely, 2^13421447634 is an apocalyptic number.

13421447634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13421447634 is an abundant number, since it is smaller than the sum of its proper divisors (17339772462).

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

13421447634 is a wasteful number, since it uses less digits than its factorization.

13421447634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871110.

The product of its digits is 193536, while the sum is 39.

The spelling of 13421447634 in words is "thirteen billion, four hundred twenty-one million, four hundred forty-seven thousand, six hundred thirty-four".