472457551881778 has 8 divisors (see below), whose sum is σ = 708689094531120. Its totient is φ = 236227853704740.

The previous prime is 472457551881761. The next prime is 472457551881779. The reversal of 472457551881778 is 877188155754274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×472457551881778² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 472457551881698 and 472457551881707.

It is not an unprimeable number, because it can be changed into a prime (472457551881779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460477528 + ... + 461502403.

It is an arithmetic number, because the mean of its divisors is an integer number (88586136816390).

Almost surely, 2^{472457551881778} is an apocalyptic number.

472457551881778 is a deficient number, since it is larger than the sum of its proper divisors (236231542649342).

472457551881778 is a wasteful number, since it uses less digits than its factorization.

472457551881778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922236152.

The product of its digits is 4917248000, while the sum is 79.

The spelling of 472457551881778 in words is "four hundred seventy-two trillion, four hundred fifty-seven billion, five hundred fifty-one million, eight hundred eighty-one thousand, seven hundred seventy-eight".