1373537338965 has 64 divisors (see below), whose sum is σ = 2666411700480. Its totient is φ = 665312071680.

The previous prime is 1373537338949. The next prime is 1373537339011. The reversal of 1373537338965 is 5698337353731.

1373537338965 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 537 + 3 + 3 + 8 + 96 + 5 = 666.

It is not a de Polignac number, because 1373537338965 - 2⁴ = 1373537338949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1086309 + ... + 1981701.

It is an arithmetic number, because the mean of its divisors is an integer number (41662682820).

Almost surely, 2^{1373537338965} is an apocalyptic number.

1373537338965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373537338965 is a deficient number, since it is larger than the sum of its proper divisors (1292874361515).

1373537338965 is a wasteful number, since it uses less digits than its factorization.

1373537338965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896451 (or 896445 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 63.

The spelling of 1373537338965 in words is "one trillion, three hundred seventy-three billion, five hundred thirty-seven million, three hundred thirty-eight thousand, nine hundred sixty-five".