38401377387578 has 32 divisors (see below), whose sum is σ = 61236246110400. Its totient is φ = 18009577442304.

The previous prime is 38401377387539. The next prime is 38401377387613. The reversal of 38401377387578 is 87578377310483.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185626 + ... + 9711962.

It is an arithmetic number, because the mean of its divisors is an integer number (1913632690950).

Almost surely, 2^{38401377387578} is an apocalyptic number.

38401377387578 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38401377387578 is a deficient number, since it is larger than the sum of its proper divisors (22834868722822).

38401377387578 is a wasteful number, since it uses less digits than its factorization.

38401377387578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528174.

The product of its (nonzero) digits is 663828480, while the sum is 71.

The spelling of 38401377387578 in words is "thirty-eight trillion, four hundred one billion, three hundred seventy-seven million, three hundred eighty-seven thousand, five hundred seventy-eight".