38378191461 has 8 divisors (see below), whose sum is σ = 51466708320. Its totient is φ = 25437567792.

The previous prime is 38378191459. The next prime is 38378191499. The reversal of 38378191461 is 16419187383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38378191461 - 2¹ = 38378191459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38378181461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36972691 + ... + 36973728.

It is an arithmetic number, because the mean of its divisors is an integer number (6433338540).

Almost surely, 2^38378191461 is an apocalyptic number.

It is an amenable number.

38378191461 is a deficient number, since it is larger than the sum of its proper divisors (13088516859).

38378191461 is a wasteful number, since it uses less digits than its factorization.

38378191461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73946595.

The product of its digits is 870912, while the sum is 51.

The spelling of 38378191461 in words is "thirty-eight billion, three hundred seventy-eight million, one hundred ninety-one thousand, four hundred sixty-one".