46990646378 has 24 divisors (see below), whose sum is σ = 77244668928. Its totient is φ = 21426676752.

The previous prime is 46990646371. The next prime is 46990646383. The reversal of 46990646378 is 87364609964.

It is a self number, because there is not a number n which added to its sum of digits gives 46990646378.

It is not an unprimeable number, because it can be changed into a prime (46990646371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809450 + ... + 865557.

It is an arithmetic number, because the mean of its divisors is an integer number (3218527872).

Almost surely, 2^46990646378 is an apocalyptic number.

46990646378 is a deficient number, since it is larger than the sum of its proper divisors (30254022550).

46990646378 is a wasteful number, since it uses less digits than its factorization.

46990646378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675118 (or 1675105 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 46990646378 in words is "forty-six billion, nine hundred ninety million, six hundred forty-six thousand, three hundred seventy-eight".