5401505464440 has 128 divisors (see below), whose sum is σ = 16263369630720. Its totient is φ = 1435178240000.

The previous prime is 5401505464409. The next prime is 5401505464457. The reversal of 5401505464440 is 444645051045.

It is a happy number.

It is a super-2 number, since 2×5401505464440² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5401505464392 and 5401505464401.

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 31 ways as a sum of consecutive naturals, for example, 42619165 + ... + 42745715.

It is an arithmetic number, because the mean of its divisors is an integer number (127057575240).

Almost surely, 2^{5401505464440} is an apocalyptic number.

It is an amenable number.

5401505464440 is an abundant number, since it is smaller than the sum of its proper divisors (10861864166280).

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

5401505464440 is a wasteful number, since it uses less digits than its factorization.

5401505464440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127853 (or 127849 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 5401505464440 in words is "five trillion, four hundred one billion, five hundred five million, four hundred sixty-four thousand, four hundred forty".