1975048699455 has 144 divisors (see below), whose sum is σ = 3880733815296. Its totient is φ = 927040308480.

The previous prime is 1975048699397. The next prime is 1975048699457. The reversal of 1975048699455 is 5549968405791.

1975048699455 is a `hidden beast` number, since 1 + 9 + 7 + 5 + 0 + 4 + 86 + 99 + 455 = 666.

It is not a de Polignac number, because 1975048699455 - 2¹⁰ = 1975048698431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975048699457) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 54380412 + ... + 54416718.

It is an arithmetic number, because the mean of its divisors is an integer number (26949540384).

Almost surely, 2^{1975048699455} is an apocalyptic number.

1975048699455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1975048699455 is a deficient number, since it is larger than the sum of its proper divisors (1905685115841).

1975048699455 is a wasteful number, since it uses less digits than its factorization.

1975048699455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36678 (or 36662 counting only the distinct ones).

The product of its (nonzero) digits is 489888000, while the sum is 72.

The spelling of 1975048699455 in words is "one trillion, nine hundred seventy-five billion, forty-eight million, six hundred ninety-nine thousand, four hundred fifty-five".