1551422807950 has 24 divisors (see below), whose sum is σ = 2886169603680. Its totient is φ = 620456611200.

The previous prime is 1551422807947. The next prime is 1551422807951. The reversal of 1551422807950 is 597082241551.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1551422807894 and 1551422807903.

It is a congruent number.

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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2533990 + ... + 3086089.

It is an arithmetic number, because the mean of its divisors is an integer number (120257066820).

Almost surely, 2^{1551422807950} is an apocalyptic number.

1551422807950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1551422807950 is a deficient number, since it is larger than the sum of its proper divisors (1334746795730).

1551422807950 is a wasteful number, since it uses less digits than its factorization.

1551422807950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625612 (or 5625607 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 1551422807950 in words is "one trillion, five hundred fifty-one billion, four hundred twenty-two million, eight hundred seven thousand, nine hundred fifty".