15405420014 has 16 divisors (see below), whose sum is σ = 23457668688. Its totient is φ = 7586242752.

The previous prime is 15405419993. The next prime is 15405420053. The reversal of 15405420014 is 41002450451.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007732 + ... + 1022904.

It is an arithmetic number, because the mean of its divisors is an integer number (1466104293).

Almost surely, 2^15405420014 is an apocalyptic number.

15405420014 is a deficient number, since it is larger than the sum of its proper divisors (8052248674).

15405420014 is a wasteful number, since it uses less digits than its factorization.

15405420014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22819.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 15405420014 its reverse (41002450451), we get a palindrome (56407870465).

The spelling of 15405420014 in words is "fifteen billion, four hundred five million, four hundred twenty thousand, fourteen".