3541993978 has 8 divisors (see below), whose sum is σ = 5426033472. Its totient is φ = 1733316156.

The previous prime is 3541993943. The next prime is 3541993981. The reversal of 3541993978 is 8793991453.

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

It is a super-3 number, since 3×3541993978³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18840300 + ... + 18840487.

It is an arithmetic number, because the mean of its divisors is an integer number (678254184).

Almost surely, 2^3541993978 is an apocalyptic number.

3541993978 is a deficient number, since it is larger than the sum of its proper divisors (1884039494).

3541993978 is a wasteful number, since it uses less digits than its factorization.

3541993978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37680836.

The product of its digits is 7348320, while the sum is 58.

The square root of 3541993978 is about 59514.6534729053. The cubic root of 3541993978 is about 1524.3426679557.

The spelling of 3541993978 in words is "three billion, five hundred forty-one million, nine hundred ninety-three thousand, nine hundred seventy-eight".