1978100046704 has 10 divisors (see below), whose sum is σ = 3832568840520. Its totient is φ = 989050023344.

The previous prime is 1978100046683. The next prime is 1978100046707. The reversal of 1978100046704 is 4076400018791.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1978100046707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61815626444 + ... + 61815626475.

It is an arithmetic number, because the mean of its divisors is an integer number (383256884052).

Almost surely, 2^{1978100046704} is an apocalyptic number.

It is an amenable number.

1978100046704 is a deficient number, since it is larger than the sum of its proper divisors (1854468793816).

1978100046704 is a wasteful number, since it uses less digits than its factorization.

1978100046704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123631252927 (or 123631252921 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 1978100046704 in words is "one trillion, nine hundred seventy-eight billion, one hundred million, forty-six thousand, seven hundred four".