1550042417973 has 8 divisors (see below), whose sum is σ = 2361969398848. Its totient is φ = 885738524544.

The previous prime is 1550042417969. The next prime is 1550042418047. The reversal of 1550042417973 is 3797142400551.

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

It is not a de Polignac number, because 1550042417973 - 2² = 1550042417969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550042417923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36905771836 + ... + 36905771877.

It is an arithmetic number, because the mean of its divisors is an integer number (295246174856).

Almost surely, 2^{1550042417973} is an apocalyptic number.

It is an amenable number.

1550042417973 is a deficient number, since it is larger than the sum of its proper divisors (811926980875).

1550042417973 is an equidigital number, since it uses as much as digits as its factorization.

1550042417973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73811543723.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 1550042417973 in words is "one trillion, five hundred fifty billion, forty-two million, four hundred seventeen thousand, nine hundred seventy-three".