501040151430 has 256 divisors, whose sum is σ = 1594166870016. Its totient is φ = 97855464960.

The previous prime is 501040151419. The next prime is 501040151467. The reversal of 501040151430 is 34151040105.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 501040151430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1817787 + ... + 2075193.

It is an arithmetic number, because the mean of its divisors is an integer number (6227214336).

Almost surely, 2^501040151430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501040151430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797083435008).

501040151430 is an abundant number, since it is smaller than the sum of its proper divisors (1093126718586).

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

501040151430 is a wasteful number, since it uses less digits than its factorization.

501040151430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257491.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 501040151430 its reverse (34151040105), we get a palindrome (535191191535).

The spelling of 501040151430 in words is "five hundred one billion, forty million, one hundred fifty-one thousand, four hundred thirty".