1948998613 has 8 divisors (see below), whose sum is σ = 2036111616. Its totient is φ = 1863400800.

The previous prime is 1948998581. The next prime is 1948998631. The reversal of 1948998613 is 3168998491.

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 1948998613 - 2⁵ = 1948998581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948998683) 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, 376168 + ... + 381313.

It is an arithmetic number, because the mean of its divisors is an integer number (254513952).

Almost surely, 2^1948998613 is an apocalyptic number.

It is an amenable number.

1948998613 is a deficient number, since it is larger than the sum of its proper divisors (87113003).

1948998613 is an equidigital number, since it uses as much as digits as its factorization.

1948998613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757595.

The product of its digits is 3359232, while the sum is 58.

The square root of 1948998613 is about 44147.4644005746. The cubic root of 1948998613 is about 1249.1190834413.

The spelling of 1948998613 in words is "one billion, nine hundred forty-eight million, nine hundred ninety-eight thousand, six hundred thirteen".