354978694777 has 8 divisors (see below), whose sum is σ = 405702266816. Its totient is φ = 304258205232.

The previous prime is 354978694753. The next prime is 354978694783. The reversal of 354978694777 is 777496879453.

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

It is a cyclic number.

It is not a de Polignac number, because 354978694777 - 2¹⁵ = 354978662009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354978694787) 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, 518343 + ... + 989260.

It is an arithmetic number, because the mean of its divisors is an integer number (50712783352).

Almost surely, 2^354978694777 is an apocalyptic number.

It is an amenable number.

354978694777 is a deficient number, since it is larger than the sum of its proper divisors (50723572039).

354978694777 is a wasteful number, since it uses less digits than its factorization.

354978694777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541247.

The product of its digits is 2240421120, while the sum is 76.

The spelling of 354978694777 in words is "three hundred fifty-four billion, nine hundred seventy-eight million, six hundred ninety-four thousand, seven hundred seventy-seven".