2061770763657 has 8 divisors (see below), whose sum is σ = 2998939292640. Its totient is φ = 1249558038560.

The previous prime is 2061770763653. The next prime is 2061770763671. The reversal of 2061770763657 is 7563670771602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2061770763657 - 2² = 2061770763653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2061770763597 and 2061770763606.

It is not an unprimeable number, because it can be changed into a prime (2061770763653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31238950932 + ... + 31238950997.

It is an arithmetic number, because the mean of its divisors is an integer number (374867411580).

Almost surely, 2^{2061770763657} is an apocalyptic number.

It is an amenable number.

2061770763657 is a deficient number, since it is larger than the sum of its proper divisors (937168528983).

2061770763657 is a wasteful number, since it uses less digits than its factorization.

2061770763657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62477901943.

The product of its (nonzero) digits is 15558480, while the sum is 57.

The spelling of 2061770763657 in words is "two trillion, sixty-one billion, seven hundred seventy million, seven hundred sixty-three thousand, six hundred fifty-seven".