1377640404250 has 32 divisors (see below), whose sum is σ = 2813392191168. Its totient is φ = 500960146000.

The previous prime is 1377640404241. The next prime is 1377640404253. The reversal of 1377640404250 is 524040467731.

It is a junction number, because it is equal to n+sod(n) for n = 1377640404197 and 1377640404206.

It is not an unprimeable number, because it can be changed into a prime (1377640404253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250477324 + ... + 250482823.

It is an arithmetic number, because the mean of its divisors is an integer number (87918505974).

Almost surely, 2^{1377640404250} is an apocalyptic number.

1377640404250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1377640404250 is an abundant number, since it is smaller than the sum of its proper divisors (1435751786918).

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

1377640404250 is a wasteful number, since it uses less digits than its factorization.

1377640404250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500960175 (or 500960165 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 1377640404250 in words is "one trillion, three hundred seventy-seven billion, six hundred forty million, four hundred four thousand, two hundred fifty".