1551422807952 has 40 divisors (see below), whose sum is σ = 4033369931136. Its totient is φ = 513847042176.

The previous prime is 1551422807951. The next prime is 1551422808083. The reversal of 1551422807952 is 2597082241551.

It is a junction number, because it is equal to n+sod(n) for n = 1551422807895 and 1551422807904.

It is not an unprimeable number, because it can be changed into a prime (1551422807951) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 102926568 + ... + 102941639.

Almost surely, 2^{1551422807952} is an apocalyptic number.

1551422807952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551422807952 is an abundant number, since it is smaller than the sum of its proper divisors (2481947123184).

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

1551422807952 is a wasteful number, since it uses less digits than its factorization.

1551422807952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205868375 (or 205868369 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The spelling of 1551422807952 in words is "one trillion, five hundred fifty-one billion, four hundred twenty-two million, eight hundred seven thousand, nine hundred fifty-two".