938810152961 has 4 divisors (see below), whose sum is σ = 938815401300. Its totient is φ = 938804904624.

The previous prime is 938810152921. The next prime is 938810152967. The reversal of 938810152961 is 169251018839.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169251018839 = 7 ⋅24178716977.

It can be written as a sum of positive squares in 2 ways, for example, as 852935367025 + 85874785936 = 923545^2 + 293044^2 .

It is a cyclic number.

It is not a de Polignac number, because 938810152961 - 2¹⁸ = 938809890817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938810152967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2346026 + ... + 2716883.

It is an arithmetic number, because the mean of its divisors is an integer number (234703850325).

Almost surely, 2^938810152961 is an apocalyptic number.

It is an amenable number.

938810152961 is a deficient number, since it is larger than the sum of its proper divisors (5248339).

938810152961 is a wasteful number, since it uses less digits than its factorization.

938810152961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248338.

The product of its (nonzero) digits is 933120, while the sum is 53.

The spelling of 938810152961 in words is "nine hundred thirty-eight billion, eight hundred ten million, one hundred fifty-two thousand, nine hundred sixty-one".