491070066758 has 8 divisors (see below), whose sum is σ = 736610566440. Its totient is φ = 245533211280.

The previous prime is 491070066737. The next prime is 491070066863. The reversal of 491070066758 is 857660070194.

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

It is a super-2 number, since 2×491070066758² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544703 + ... + 1130858.

It is an arithmetic number, because the mean of its divisors is an integer number (92076320805).

Almost surely, 2^491070066758 is an apocalyptic number.

491070066758 is a deficient number, since it is larger than the sum of its proper divisors (245540499682).

491070066758 is a wasteful number, since it uses less digits than its factorization.

491070066758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822102.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 491070066758 in words is "four hundred ninety-one billion, seventy million, sixty-six thousand, seven hundred fifty-eight".