1043717720373 has 6 divisors (see below), whose sum is σ = 1507592262774. Its totient is φ = 695811813576.

The previous prime is 1043717720363. The next prime is 1043717720407. The reversal of 1043717720373 is 3730277173401.

1043717720373 is a `hidden beast` number, since 1 + 0 + 4 + 371 + 7 + 7 + 203 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 941485971204 + 102231749169 = 970302^2 + 319737^2 .

It is not a de Polignac number, because 1043717720373 - 2¹³ = 1043717712181 is a prime.

It is a super-2 number, since 2×1043717720373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043717720303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57984317790 + ... + 57984317807.

It is an arithmetic number, because the mean of its divisors is an integer number (251265377129).

Almost surely, 2^{1043717720373} is an apocalyptic number.

It is an amenable number.

1043717720373 is a deficient number, since it is larger than the sum of its proper divisors (463874542401).

1043717720373 is a wasteful number, since it uses less digits than its factorization.

1043717720373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115968635603 (or 115968635600 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 45.

The spelling of 1043717720373 in words is "one trillion, forty-three billion, seven hundred seventeen million, seven hundred twenty thousand, three hundred seventy-three".