151404351638 has 4 divisors (see below), whose sum is σ = 227106527460. Its totient is φ = 75702175818.

The previous prime is 151404351617. The next prime is 151404351649. The reversal of 151404351638 is 836153404151.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 151404351595 and 151404351604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37851087908 + ... + 37851087911.

It is an arithmetic number, because the mean of its divisors is an integer number (56776631865).

Almost surely, 2^151404351638 is an apocalyptic number.

151404351638 is a deficient number, since it is larger than the sum of its proper divisors (75702175822).

151404351638 is an equidigital number, since it uses as much as digits as its factorization.

151404351638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75702175821.

The product of its (nonzero) digits is 172800, while the sum is 41.

Adding to 151404351638 its reverse (836153404151), we get a palindrome (987557755789).

The spelling of 151404351638 in words is "one hundred fifty-one billion, four hundred four million, three hundred fifty-one thousand, six hundred thirty-eight".