506072924978 has 4 divisors (see below), whose sum is σ = 759109387470. Its totient is φ = 253036462488.

The previous prime is 506072924963. The next prime is 506072924983. The reversal of 506072924978 is 879429270605.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 413458002049 + 92614922929 = 643007^2 + 304327^2 .

It is a super-2 number, since 2×506072924978² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126518231243 + ... + 126518231246.

Almost surely, 2^506072924978 is an apocalyptic number.

506072924978 is a deficient number, since it is larger than the sum of its proper divisors (253036462492).

506072924978 is a wasteful number, since it uses less digits than its factorization.

506072924978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253036462491.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 506072924978 in words is "five hundred six billion, seventy-two million, nine hundred twenty-four thousand, nine hundred seventy-eight".