1929818294041 has 27 divisors (see below), whose sum is σ = 2168104400917. Its totient is φ = 1716414005240.

The previous prime is 1929818294003. The next prime is 1929818294101. The reversal of 1929818294041 is 1404928189291.

The square root of 1929818294041 is 1389179.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1929818294041 - 2¹⁷ = 1929818162969 is a prime.

It is a super-2 number, since 2×1929818294041² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1929818298041) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 718204200 + ... + 718206886.

Almost surely, 2^{1929818294041} is an apocalyptic number.

1929818294041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1929818294041 is the 1389179-th square number.

1929818294041 is the 694590-th centered octagonal number.

It is an amenable number.

1929818294041 is a deficient number, since it is larger than the sum of its proper divisors (238286106876).

1929818294041 is an frugal number, since it uses more digits than its factorization.

1929818294041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 58.

The spelling of 1929818294041 in words is "one trillion, nine hundred twenty-nine billion, eight hundred eighteen million, two hundred ninety-four thousand, forty-one".