400023315453352 has 8 divisors (see below), whose sum is σ = 750043716475050. Its totient is φ = 200011657726672.

The previous prime is 400023315453343. The next prime is 400023315453361. The reversal of 400023315453352 is 253354513320004.

It is an interprime number because it is at equal distance from previous prime (400023315453343) and next prime (400023315453361).

It can be written as a sum of positive squares in only one way, i.e., 262799568676836 + 137223746776516 = 16211094^2 + 11714254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25001457215827 + ... + 25001457215842.

Almost surely, 2^{400023315453352} is an apocalyptic number.

It is an amenable number.

400023315453352 is a deficient number, since it is larger than the sum of its proper divisors (350020401021698).

400023315453352 is a wasteful number, since it uses less digits than its factorization.

400023315453352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50002914431675 (or 50002914431671 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 400023315453352 its reverse (253354513320004), we get a palindrome (653377828773356).

The spelling of 400023315453352 in words is "four hundred trillion, twenty-three billion, three hundred fifteen million, four hundred fifty-three thousand, three hundred fifty-two".