1247131003678 has 16 divisors (see below), whose sum is σ = 2190083714784. Its totient is φ = 521448503040.

The previous prime is 1247131003631. The next prime is 1247131003681. The reversal of 1247131003678 is 8763001317421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086350475 + ... + 1086351622.

It is an arithmetic number, because the mean of its divisors is an integer number (136880232174).

Almost surely, 2^{1247131003678} is an apocalyptic number.

1247131003678 is a deficient number, since it is larger than the sum of its proper divisors (942952711106).

1247131003678 is a wasteful number, since it uses less digits than its factorization.

1247131003678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172702147.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 1247131003678 in words is "one trillion, two hundred forty-seven billion, one hundred thirty-one million, three thousand, six hundred seventy-eight".