1011900769 has 8 divisors (see below), whose sum is σ = 1111951008. Its totient is φ = 913193760.

The previous prime is 1011900767. The next prime is 1011900779. The reversal of 1011900769 is 9670091101.

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 1011900769 - 2¹ = 1011900767 is a prime.

It is a super-2 number, since 2×1011900769² = 2047886332605582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011900761) 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, 334227 + ... + 337240.

It is an arithmetic number, because the mean of its divisors is an integer number (138993876).

Almost surely, 2^1011900769 is an apocalyptic number.

It is an amenable number.

1011900769 is a deficient number, since it is larger than the sum of its proper divisors (100050239).

1011900769 is a wasteful number, since it uses less digits than its factorization.

1011900769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671615.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 1011900769 is about 31810.3877530595. The cubic root of 1011900769 is about 1003.9512897459.

The spelling of 1011900769 in words is "one billion, eleven million, nine hundred thousand, seven hundred sixty-nine".