1948513466774 has 32 divisors (see below), whose sum is σ = 3537329978880. Its totient is φ = 785836695168.

The previous prime is 1948513466729. The next prime is 1948513466777. The reversal of 1948513466774 is 4776643158491.

It is a self number, because there is not a number n which added to its sum of digits gives 1948513466774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948513466777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976709 + ... + 2202495.

It is an arithmetic number, because the mean of its divisors is an integer number (110541561840).

Almost surely, 2^{1948513466774} is an apocalyptic number.

1948513466774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1948513466774 is a deficient number, since it is larger than the sum of its proper divisors (1588816512106).

1948513466774 is a wasteful number, since it uses less digits than its factorization.

1948513466774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232492.

The product of its digits is 121927680, while the sum is 65.

The spelling of 1948513466774 in words is "one trillion, nine hundred forty-eight billion, five hundred thirteen million, four hundred sixty-six thousand, seven hundred seventy-four".