137758283679978 has 64 divisors (see below), whose sum is σ = 329679614302080. Its totient is φ = 42386949437184.

The previous prime is 137758283679977. The next prime is 137758283680013. The reversal of 137758283679978 is 879976382857731.

137758283679978 is a `hidden beast` number, since 1 + 3 + 7 + 75 + 8 + 28 + 367 + 99 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (137758283679977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190219650 + ... + 190942482.

It is an arithmetic number, because the mean of its divisors is an integer number (5151243973470).

Almost surely, 2^{137758283679978} is an apocalyptic number.

137758283679978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

137758283679978 is an abundant number, since it is smaller than the sum of its proper divisors (191921330622102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137758283679978 is a wasteful number, since it uses less digits than its factorization.

137758283679978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994340 (or 994334 counting only the distinct ones).

The product of its digits is 53770106880, while the sum is 90.

The spelling of 137758283679978 in words is "one hundred thirty-seven trillion, seven hundred fifty-eight billion, two hundred eighty-three million, six hundred seventy-nine thousand, nine hundred seventy-eight".