15420483646 has 32 divisors (see below), whose sum is σ = 23614228800. Its totient is φ = 7550807040.

The previous prime is 15420483623. The next prime is 15420483649. The reversal of 15420483646 is 64638402451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420483649) 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, 16779175 + ... + 16780093.

It is an arithmetic number, because the mean of its divisors is an integer number (737944650).

Almost surely, 2^15420483646 is an apocalyptic number.

15420483646 is a deficient number, since it is larger than the sum of its proper divisors (8193745154).

15420483646 is a wasteful number, since it uses less digits than its factorization.

15420483646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 15420483646 in words is "fifteen billion, four hundred twenty million, four hundred eighty-three thousand, six hundred forty-six".