101504340478 has 4 divisors (see below), whose sum is σ = 152256510720. Its totient is φ = 50752170238.

The previous prime is 101504340449. The next prime is 101504340481. The reversal of 101504340478 is 874043405101.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×101504340478² (a number of 23 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 25376085118 + ... + 25376085121.

It is an arithmetic number, because the mean of its divisors is an integer number (38064127680).

Almost surely, 2^101504340478 is an apocalyptic number.

101504340478 is a deficient number, since it is larger than the sum of its proper divisors (50752170242).

101504340478 is an equidigital number, since it uses as much as digits as its factorization.

101504340478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50752170241.

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 101504340478 its reverse (874043405101), we get a palindrome (975547745579).

The spelling of 101504340478 in words is "one hundred one billion, five hundred four million, three hundred forty thousand, four hundred seventy-eight".