6981020745 has 16 divisors (see below), whose sum is σ = 11170680192. Its totient is φ = 3722862080.

The previous prime is 6981020723. The next prime is 6981020791. The reversal of 6981020745 is 5470201896.

It is not a de Polignac number, because 6981020745 - 2⁶ = 6981020681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6981020697 and 6981020706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266380 + ... + 291410.

It is an arithmetic number, because the mean of its divisors is an integer number (698167512).

Almost surely, 2^6981020745 is an apocalyptic number.

It is an amenable number.

6981020745 is a deficient number, since it is larger than the sum of its proper divisors (4189659447).

6981020745 is a wasteful number, since it uses less digits than its factorization.

6981020745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43632.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 6981020745 is about 83552.5029248077. The cubic root of 6981020745 is about 1911.2007603601.

The spelling of 6981020745 in words is "six billion, nine hundred eighty-one million, twenty thousand, seven hundred forty-five".