153229761838 has 4 divisors (see below), whose sum is σ = 229844642760. Its totient is φ = 76614880918.

The previous prime is 153229761803. The next prime is 153229761887. The reversal of 153229761838 is 838167922351.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×153229761838² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38307440458 + ... + 38307440461.

It is an arithmetic number, because the mean of its divisors is an integer number (57461160690).

Almost surely, 2^153229761838 is an apocalyptic number.

153229761838 is a deficient number, since it is larger than the sum of its proper divisors (76614880922).

153229761838 is an equidigital number, since it uses as much as digits as its factorization.

153229761838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76614880921.

The product of its digits is 4354560, while the sum is 55.

The spelling of 153229761838 in words is "one hundred fifty-three billion, two hundred twenty-nine million, seven hundred sixty-one thousand, eight hundred thirty-eight".