1208079431690 has 16 divisors (see below), whose sum is σ = 2191665364992. Its totient is φ = 479426797584.

The previous prime is 1208079431651. The next prime is 1208079431693. The reversal of 1208079431690 is 961349708021.

It is a super-2 number, since 2×1208079431690² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1208079431693) 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, 475620554 + ... + 475623093.

It is an arithmetic number, because the mean of its divisors is an integer number (136979085312).

Almost surely, 2^{1208079431690} is an apocalyptic number.

1208079431690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1208079431690 is a deficient number, since it is larger than the sum of its proper divisors (983585933302).

1208079431690 is a wasteful number, since it uses less digits than its factorization.

1208079431690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951243781.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 1208079431690 in words is "one trillion, two hundred eight billion, seventy-nine million, four hundred thirty-one thousand, six hundred ninety".