1007971972892 has 24 divisors (see below), whose sum is σ = 1916686947840. Its totient is φ = 462058458480.

The previous prime is 1007971972849. The next prime is 1007971972913. The reversal of 1007971972892 is 2982791797001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

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, 213913598 + ... + 213918309.

It is an arithmetic number, because the mean of its divisors is an integer number (79861956160).

Almost surely, 2^{1007971972892} is an apocalyptic number.

It is an amenable number.

1007971972892 is a deficient number, since it is larger than the sum of its proper divisors (908714974948).

1007971972892 is a wasteful number, since it uses less digits than its factorization.

1007971972892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427831961 (or 427831959 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 62.

The spelling of 1007971972892 in words is "one trillion, seven billion, nine hundred seventy-one million, nine hundred seventy-two thousand, eight hundred ninety-two".