1147890461640 has 128 divisors (see below), whose sum is σ = 3735250243200. Its totient is φ = 280524810240.

The previous prime is 1147890461621. The next prime is 1147890461657. The reversal of 1147890461640 is 461640987411.

It is a super-2 number, since 2×1147890461640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2430021 + ... + 2863700.

It is an arithmetic number, because the mean of its divisors is an integer number (29181642525).

Almost surely, 2^{1147890461640} is an apocalyptic number.

1147890461640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147890461640 is an abundant number, since it is smaller than the sum of its proper divisors (2587359781560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1147890461640 is a wasteful number, since it uses less digits than its factorization.

1147890461640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293887 (or 5293883 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 1147890461640 in words is "one trillion, one hundred forty-seven billion, eight hundred ninety million, four hundred sixty-one thousand, six hundred forty".