15400838180454 has 32 divisors (see below), whose sum is σ = 31709294801376. Its totient is φ = 4983002115840.

The previous prime is 15400838180423. The next prime is 15400838180461. The reversal of 15400838180454 is 45408183800451.

It is a happy number.

15400838180454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15400838180454² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15400838180397 and 15400838180406.

It is a congruent number.

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, 82297447 + ... + 82484370.

It is an arithmetic number, because the mean of its divisors is an integer number (990915462543).

Almost surely, 2^{15400838180454} is an apocalyptic number.

15400838180454 is an abundant number, since it is smaller than the sum of its proper divisors (16308456620922).

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

15400838180454 is a wasteful number, since it uses less digits than its factorization.

15400838180454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164782280.

The product of its (nonzero) digits is 2457600, while the sum is 51.

The spelling of 15400838180454 in words is "fifteen trillion, four hundred billion, eight hundred thirty-eight million, one hundred eighty thousand, four hundred fifty-four".