1955398896747 has 32 divisors (see below), whose sum is σ = 2984170472960. Its totient is φ = 1264534714080.

The previous prime is 1955398896709. The next prime is 1955398896791. The reversal of 1955398896747 is 7476988935591.

1955398896747 is a `hidden beast` number, since 1 + 9 + 5 + 539 + 8 + 8 + 9 + 6 + 74 + 7 = 666.

It is not a de Polignac number, because 1955398896747 - 2⁶ = 1955398896683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955398896707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2626063 + ... + 3287400.

It is an arithmetic number, because the mean of its divisors is an integer number (93255327280).

Almost surely, 2^{1955398896747} is an apocalyptic number.

1955398896747 is a deficient number, since it is larger than the sum of its proper divisors (1028771576213).

1955398896747 is a wasteful number, since it uses less digits than its factorization.

1955398896747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913840 (or 5913834 counting only the distinct ones).

The product of its digits is 4115059200, while the sum is 81.

The spelling of 1955398896747 in words is "one trillion, nine hundred fifty-five billion, three hundred ninety-eight million, eight hundred ninety-six thousand, seven hundred forty-seven".