1215425463650 has 24 divisors (see below), whose sum is σ = 2261784204180. Its totient is φ = 485935165760.

The previous prime is 1215425463641. The next prime is 1215425463683. The reversal of 1215425463650 is 563645245121.

It can be written as a sum of positive squares in 6 ways, for example, as 46624469329 + 1168800994321 = 215927^2 + 1081111^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5771009 + ... + 5977908.

Almost surely, 2^{1215425463650} is an apocalyptic number.

1215425463650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215425463650 is a deficient number, since it is larger than the sum of its proper divisors (1046358740530).

1215425463650 is a wasteful number, since it uses less digits than its factorization.

1215425463650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11750998 (or 11750993 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 1215425463650 in words is "one trillion, two hundred fifteen billion, four hundred twenty-five million, four hundred sixty-three thousand, six hundred fifty".