1973256351 has 32 divisors (see below), whose sum is σ = 3046450176. Its totient is φ = 1122816000.

The previous prime is 1973256301. The next prime is 1973256377. The reversal of 1973256351 is 1536523791.

It is not a de Polignac number, because 1973256351 - 2¹⁵ = 1973223583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973256301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237711 + ... + 245871.

It is an arithmetic number, because the mean of its divisors is an integer number (95201568).

Almost surely, 2^1973256351 is an apocalyptic number.

1973256351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1973256351 is a deficient number, since it is larger than the sum of its proper divisors (1073193825).

1973256351 is a wasteful number, since it uses less digits than its factorization.

1973256351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623.

The product of its digits is 170100, while the sum is 42.

The square root of 1973256351 is about 44421.3501708356. The cubic root of 1973256351 is about 1254.2800166532.

The spelling of 1973256351 in words is "one billion, nine hundred seventy-three million, two hundred fifty-six thousand, three hundred fifty-one".