137987960290 has 8 divisors (see below), whose sum is σ = 248378328540. Its totient is φ = 55195184112.

The previous prime is 137987960273. The next prime is 137987960339. The reversal of 137987960290 is 92069789731.

It can be written as a sum of positive squares in 2 ways, for example, as 135853427889 + 2134532401 = 368583^2 + 46201^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6899398005 + ... + 6899398024.

Almost surely, 2^137987960290 is an apocalyptic number.

137987960290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137987960290 is a deficient number, since it is larger than the sum of its proper divisors (110390368250).

137987960290 is a wasteful number, since it uses less digits than its factorization.

137987960290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13798796036.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 137987960290 in words is "one hundred thirty-seven billion, nine hundred eighty-seven million, nine hundred sixty thousand, two hundred ninety".