247001042642 has 16 divisors (see below), whose sum is σ = 384776364192. Its totient is φ = 118827989280.

The previous prime is 247001042633. The next prime is 247001042669. The reversal of 247001042642 is 246240100742.

It is a super-2 number, since 2×247001042642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247001042599 and 247001042608.

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, 21427859 + ... + 21439382.

It is an arithmetic number, because the mean of its divisors is an integer number (24048522762).

Almost surely, 2^247001042642 is an apocalyptic number.

247001042642 is a deficient number, since it is larger than the sum of its proper divisors (137775321550).

247001042642 is a wasteful number, since it uses less digits than its factorization.

247001042642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42867353.

The product of its (nonzero) digits is 21504, while the sum is 32.

The spelling of 247001042642 in words is "two hundred forty-seven billion, one million, forty-two thousand, six hundred forty-two".