354786078481 has 12 divisors (see below), whose sum is σ = 380580230964. Its totient is φ = 330603055200.

The previous prime is 354786078421. The next prime is 354786078511. The reversal of 354786078481 is 184870687453.

It can be written as a sum of positive squares in 2 ways, for example, as 97818192081 + 256967886400 = 312759^2 + 506920^2 .

It is a de Polignac number, because none of the positive numbers 2^k-354786078481 is a prime.

It is a super-2 number, since 2×354786078481² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354786078421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8033610 + ... + 8077651.

It is an arithmetic number, because the mean of its divisors is an integer number (31715019247).

Almost surely, 2^354786078481 is an apocalyptic number.

It is an amenable number.

354786078481 is a deficient number, since it is larger than the sum of its proper divisors (25794152483).

354786078481 is a wasteful number, since it uses less digits than its factorization.

354786078481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16111360 (or 16111341 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 354786078481 in words is "three hundred fifty-four billion, seven hundred eighty-six million, seventy-eight thousand, four hundred eighty-one".